EXHIBIT A-1

CLASS A-1 CERTIFICATE

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A “REGULAR INTEREST” IN A “REAL ESTATE MORTGAGE INVESTMENT CONDUIT,” AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE INTERNAL REVENUE CODE OF 1986 (THE “CODE”).

THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED BY THE PRINCIPAL PAYMENTS HEREON. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY TO THE DEPOSITOR OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

Certificate No. 1	Pass-Through Rate: Variable

Class A-1 Senior

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $41,000,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $41,000,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QN 1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class A-1 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Nomura Asset Acceptance Corporation (“NAAC”), Securities Administrator or the Trustee or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by NAAC, the Securities Administrator or the Trustee or any of their affiliates or any other person. None of NAAC, the Trustee, the Securities Administrator or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Cede & Co. is the registered owner of the Percentage Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”) generally consisting of conventional second lien, fixed rate mortgage loans secured by one- to four- family residences, units in planned unit developments and individual condominium units (collectively, the “Mortgage Loans”) sold by NAAC. The Mortgage Loans were sold by Nomura Credit & Capital, Inc. (the “Seller”) to NAAC. The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among NAAC, as depositor (the “Depositor”), the Seller, as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator (in such capacity, the “Securities Administrator”) and master servicer, and HSBC Bank USA, National Association, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.17% or (B) after the first possible optional termination date, 0.34% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Certificate Principal Balance of this Certificate is set forth above. The Certificate Principal Balance hereof will be reduced to the extent of distributions allocable to principal hereon.

This Certificate is one of a duly authorized issue of Certificates designated as set forth on the face hereof (the “Certificates”). The Certificates, in the aggregate, evidence the entire beneficial ownership interest in the Trust Fund formed pursuant to the Agreement.

The Certificateholder, by its acceptance of this Certificate, agrees that it will look solely to the Trust Fund for payment hereunder and that the Securities Administrator is not liable to the Certificateholders for any amount payable under this Certificate or the Agreement or, except as expressly provided in the Agreement, subject to any liability under the Agreement.

This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for the interests, rights and limitations of rights, benefits, obligations and duties evidenced hereby, and the rights, duties and immunities of the Securities Administrator. The Certificates are limited in right of payment to certain collections and recoveries respecting the Mortgage Loans and payments received pursuant to the Mortgage Loan Interest Rate Cap Agreement, all as more specifically set forth in the Agreement.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Classes or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

As provided in the Agreement and subject to certain limitations therein set forth, the transfer of this Certificate is registrable with the Securities Administrator upon surrender of this Certificate for registration of transfer at the offices or agencies maintained by the Securities Administrator for such purposes, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Securities Administrator duly executed by the Holder hereof or such Holder’s attorney duly authorized in writing, and thereupon one or more new Certificates in authorized denominations representing a like aggregate Percentage Interest will be issued to the designated transferee.

The Certificates are issuable only as registered Certificates without coupons in the Classes and denominations specified in the Agreement. As provided in the Agreement and subject to certain limitations therein set forth, this Certificate is exchangeable for one or more new Certificates evidencing the same Class and in the same aggregate Percentage Interest, as requested by the Holder surrendering the same.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of Depositor, the Trustee, the Securities Administrator or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only on any Distribution Date on or after the later of (i) the Distribution Date in July 2008 and (ii) the Distribution Date on which the aggregate Stated Principal Balance of the Mortgage Loans is less than or equal to 10% of the aggregate Stated Principal Balance of the Mortgage Loans at the Cut-off Date. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

Unless this Certificate has been countersigned by an authorized signatory of the Securities Administrator by manual signature, this Certificate shall not be entitled to any benefit under the Agreement, or be valid for any purpose.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated:

December __, 2005

WELLS FARGO BANK, N. A.

not in its individual capacity but solely as

Securities Administrator

By: ______________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class A-1 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N. A.

Authorized signatory of Wells Fargo Bank,

N.A. not in its individual capacity but solely

as Securities Administrator

By: ____________________________

Authorized Signatory

ASSIGNMENT

FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto __________________________________ (Please print or typewrite name and address including postal zip code of assignee) a Percentage Interest evidenced by the within Asset-Backed Certificate and hereby authorizes the transfer of registration of such interest to assignee on the Certificate Register of the Trust Fund.

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

Distributions shall be made, by wire transfer or otherwise, in immediately available funds to _________________________________ for the account of _________________________ account number _____________, or, if mailed by check, to ______________________________. Applicable statements should be mailed to _____________________________________________.

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-1

CLASS A- 2 CERTIFICATE

Certificate No. 1	Pass-Through Rate: Variable

Class A-2 Senior

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $11,094,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $11,094,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QP 6

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class A-2 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.40% or (B) after the first possible optional termination date, 0.80% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated:

December __, 2005

WELLS FARGO BANK, N. A.

not in its individual capacity but solely as

Securities Administrator

By: _____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class A-2 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N. A.

Authorized signatory of Wells Fargo Bank,

N.A. not in its individual capacity but solely

as Securities Administrator

By: __________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-1

CLASS A-3 CERTIFICATE

Certificate No. 1	Pass-Through Rate: Variable

Class A-3 Senior

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $150,000,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $150,000,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QQ 4

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class A-3 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.30% or (B) after the first possible optional termination date, 0.60% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated:

December __, 2005

WELLS FARGO BANK, N. A.

not in its individual capacity but solely as

Securities Administrator

By: _____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class A-3 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N. A.

Authorized signatory of Wells Fargo Bank,

N.A. not in its individual capacity but solely

as Securities Administrator

By: ____________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-1 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DECREASED BY PRINCIPAL PAYMENTS HEREON AND REALIZED LOSSES ALLOCABLE HERETO. ACCORDINGLY, FOLLOWING THE INITIAL ISSUANCE OF THE CERTIFICATES, THE CERTIFICATE PRINCIPAL BALANCE OF THIS CERTIFICATE WILL BE DIFFERENT FROM THE DENOMINATION SHOWN BELOW. ANYONE ACQUIRING THIS CERTIFICATE MAY ASCERTAIN ITS CERTIFICATE PRINCIPAL BALANCE BY INQUIRY OF THE SECURITIES ADMINISTRATOR NAMED HEREIN.

PURSUANT TO SECTION 6.02(b) OF THE AGREEMENT, AN ERISA RESTRICTED CERTIFICATE OR ANY INTEREST THEREIN MAY NOT BE TRANSFERRED UNLESS THE TRANSFEREE DELIVERS TO THE SECURITIES ADMINISTRATOR (I) A REPRESENTATION LETTER TO THE EFFECT THAT SUCH TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT SUBJECT TO SECTION 406 OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”) OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”) OR A PERSON ACQUIRING SUCH CERTIFICATE FOR, ON BEHALF OF OR WITH THE ASSETS OF SUCH A PLAN OR ARRANGEMENT (“BENEFIT PLAN INVESTOR”) OR (II) IF THE PURCHASER IS AN INSURANCE COMPANY AND THE CERTIFICATE IS SUBJECT TO AN ERISA-QUALIFYING UNDERWRITING, A REPRESENTATION IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN OR (III) AN OPINION OF COUNSEL IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN. IN THE EVENT THE REPRESENTATIONS REFERRED TO IN THE PRECEDING SENTENCE ARE NOT FURNISHED, SUCH REPRESENTATION SHALL BE DEEMED TO HAVE BEEN MADE TO THE SECURITIES ADMINISTRATOR BY THE TRANSFEREE’S ACCEPTANCE OF AN ERISA-RESTRICTED CERTIFICATE, OR BY ANY BENEFICIAL OWNER WHO PURCHASES AN INTEREST IN THIS CERTIFICATE IN BOOK-ENTRY FORM. IN THE EVENT THAT A REPRESENTATION IS VIOLATED, OR ANY ATTEMPT TO TRANSFER THIS CERTIFICATE TO A BENEFIT PLAN INVESTOR IS ATTEMPTED WITHOUT THE DELIVERY TO THE SECURITIES ADMINISTRATOR OF THE OPINION OF COUNSEL DESCRIBED ABOVE, THE ATTEMPTED TRANSFER OR ACQUISITION OF AN ERISA-RESTRICTED CERTIFICATE SHALL BE VOID AND OF NO EFFECT.

Certificate No. 1	Pass-Through Rate: Variable

Class M-1 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $11,143,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 11,143,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QR 2

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-1 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Nomura Asset Acceptance Corporation (“NAAC”), the Securities Administrator or the Trustee or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by NAAC, the Securities Administrator or the Trustee or any of their affiliates or any other person. None of NAAC, the Securities Administrator, the Trustee or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.54% or (B) after the first possible optional termination date, 0.81% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

Pursuant to Section 6.02(b) of the Agreement, no transfer of an ERISA Restricted Certificate shall be made unless the Securities Administrator shall have received either (x) from the transferee of such ERISA Restricted Certificate, in form and substance satisfactory to the Securities Administrator either (i) a representation letter to the effect that such transferee is not an employee benefit plan or arrangement subject to Section 406 of ERISA or Section 4975 of the Code, or a person acquiring such Certificate for, on behalf of or with the assets of any such plan or arrangement (“Benefit Plan Investor”) or (ii) an Opinion of Counsel satisfactory to the Securities Administrator to the effect that the purchase or holding of such Certificate will not result in prohibited transactions under Section 406 of ERISA and/or Section 4975 of the Code and will not subject the Depositor, the Seller, the Servicer or the Securities Administrator to any obligation in addition to those undertaken in this Agreement or (y) if the Certificate is subject to an ERISA-Qualifying Underwriting, a representation letter that the purchaser is an insurance company which is purchasing such Certificates with funds contained in an “insurance company general account” (as such term is defined in Section V(e) of Prohibited Transaction Class Exemption 95-60 (“PTCE 95-60”)) and that the purchase and holding of such Certificate are covered under Sections I and III of PTCE 95-60. Neither the representation letters nor the Opinion of Counsel shall be an expense of any such parties or the Trust Fund. In the event the representations referred to in the preceding sentence are not furnished, such representation shall be deemed to have been made to the Securities Administrator by the transferee’s acceptance of an ERISA Restricted Certificate or by any beneficial owner who purchases an interest in this certificate in book-entry form. In the event that a representation is violated, or any attempt to transfer an ERISA Restricted Certificate to a Benefit Plan Investor is attempted without the delivery to the Securities Administrator of the Opinion of Counsel described above, the attempted transfer or acquisition of this certificate shall be void and of no effect.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: _____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-1 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: ____________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-2 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES AND THE CLASS M-1 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No.1	Pass-Through Rate: Variable

Class M-2 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 13,206,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 13,206,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QS 0

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-2 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.57% or (B) after the first possible optional termination date, 0.855% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: __________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-2 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: _________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-3 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES , THE CLASS M-1 CERTIFICATES AND THE CLASS M-2 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1	Pass-Through Rate: Variable

Class M-3 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 6,053,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 6,053,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QT 8

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-3 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.60% or (B) after the first possible optional termination date, 0.90% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-3 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: ___________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-4 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M-1 CERTIFICATES, THE CLASS M-2 CERTIFICATES AND THE CLASS M-3 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1	Pass-Through Rate: Variable

Class M-4 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 5,778,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 5,778,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QU 5

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-4 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.72% or (B) after the first possible optional termination date, 1.08% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as Securities Administrator

By: ___________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-4 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank, N.A., not in its individual capacity but solely as Securities Administrator

By: __________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-5 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M-1 CERTIFICATES, THE CLASS M-2 CERTIFICATES, THE CLASS M-3 CERTIFICATES AND THE CLASS M-4 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1	Pass-Through Rate: Variable

Class M-5 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 6,053,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 6,053,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QV 3

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-5 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 0.95% or (B) after the first possible optional termination date, 1.425% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only on any Distribution Date on or after the later of (i) the Distribution Date in April 2008 and (ii) the Distribution Date on which the aggregate Stated Principal Balance of the Mortgage Loans is less than or equal to 10% of the aggregate Stated Principal Balance of the Mortgage Loans at the Cut-off Date. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: __________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-5 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: _________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS M-6 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES , THE CLASS M-1 CERTIFICATES, THE CLASS M-2 CERTIFICATES, THE CLASS M-3 CERTIFICATES, THE CLASS M-4 CERTIFICATES AND THE CLASS M-5 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1	Pass-Through Rate: Variable

Class M-6 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,852,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,852,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QW 1

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class M-6 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 1.20% or (B) after the first possible optional termination date, 1.80% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the M-6 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: ___________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-3

CLASS X-1 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M CERTIFICATES AND THE CLASS B CERTIFICATES TO THE EXTENT DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN.

THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (“THE ACT”). ANY RESALE OR TRANSFER OF THIS CERTIFICATE WITHOUT REGISTRATION THEREOF UNDER THE ACT MAY ONLY BE MADE IN A TRANSACTION EXEMPTED FROM THE REGISTRATION REQUIREMENTS OF THE ACT AND IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN.

PURSUANT TO SECTION 6.02(b) OF THE AGREEMENT, AN ERISA RESTRICTED CERTIFICATE OR ANY INTEREST HEREIN MAY NOT BE TRANSFERRED UNLESS THE TRANSFEREE DELIVERS TO THE SECURITIES ADMINISTRATOR (I) A REPRESENTATION LETTER TO THE EFFECT THAT SUCH TRANSFEREE IS NOT AN EMPLOYEE BENEFIT PLAN OR ARRANGEMENT SUBJECT TO SECTION 406 OF THE EMPLOYEE RETIREMENT INCOME SECURITY ACT OF 1974, AS AMENDED (“ERISA”) OR SECTION 4975 OF THE INTERNAL REVENUE CODE OF 1986, AS AMENDED (THE “CODE”) OR A PERSON ACQUIRING SUCH CERTIFICATE FOR, ON BEHALF OF OR WITH THE ASSETS OF SUCH A PLAN OR ARRANGEMENT (“BENEFIT PLAN INVESTOR”) OR (II) IF THE PURCHASER IS AN INSURANCE COMPANY AND THE CERTIFICATE IS SUBJECT TO AN ERISA-QUALIFYING UNDERWRITING, A REPRESENTATION IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN OR (III) AN OPINION OF COUNSEL IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN. IN THE EVENT THE REPRESENTATIONS REFERRED TO IN THE PRECEDING SENTENCE ARE NOT FURNISHED, SUCH REPRESENTATION SHALL BE DEEMED TO HAVE BEEN MADE TO THE SECURITIES ADMINISTRATOR BY THE TRANSFEREE’S ACCEPTANCE OF THIS CERTIFICATE, OR BY ANY BENEFICIAL OWNER WHO PURCHASES AN INTEREST IN THIS CERTIFICATE IN BOOK-ENTRY FORM. IN THE EVENT THAT A REPRESENTATION IS VIOLATED, OR ANY ATTEMPT TO TRANSFER THIS CERTIFICATE TO A BENEFIT PLAN INVESTOR IS ATTEMPTED WITHOUT THE DELIVERY TO THE SECURITIES ADMINISTRATOR OF THE OPINION OF COUNSEL DESCRIBED ABOVE, THE ATTEMPTED TRANSFER OR ACQUISITION OF THIS CERTIFICATE SHALL BE VOID AND OF NO EFFECT.

Certificate No. 1

Class X-1	Variable Pass-Through Rate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Class X Notional Amount of this Certificate as of the Cut-off Date: $275,145,794.80

Trustee: HSBC Bank USA, National Association	Initial Class X Notional Amount of this Certificate as of the Cut-off Date: $275,145,794.80
First Distribution Date: December 25, 2005

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RB 6

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class X-1 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Nomura Asset Acceptance Corporation (“NAAC”) or the Trustee or Securities Administrator referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by NAAC, the Securities Administrator or the Trustee or any of their affiliates or any other person. None of NAAC, the Securities Administrator, the Trustee or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

This certifies that Nomura Securities International, Inc. is the registered owner of the Percentage Interest evidenced hereby in the beneficial ownership interest of Certificates of the same Class as this Certificate in a trust (the “Trust Fund”), generally consisting of conventional second lien, fixed rate mortgage loans secured by one- to four- family residences, units in planned unit developments and individual condominium units (collectively, the “Mortgage Loans”) sold by NAAC. The Mortgage Loans were sold by Nomura Credit & Capital, Inc. (the “Seller”) to NAAC. The Trust Fund was created pursuant to the Pooling and Servicing Agreement dated as of the Cut-off Date specified above (the “Agreement”), among NAAC, as depositor (the “Depositor”), the Seller, as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator (in such capacity, the “Securities Administrator”) and master servicer, and HSBC Bank USA, National Association, as trustee (the “Trustee”), a summary of certain of the pertinent provisions of which is set forth hereafter. To the extent not defined herein, capitalized terms used herein shall have the meaning ascribed to them in the Agreement. This Certificate is issued under and is subject to the terms, provisions and conditions of the Agreement, to which Agreement the Holder of this Certificate by virtue of its acceptance hereof assents and by which such Holder is bound.

Interest on this Certificate will accrue during the month prior to the month in which a Distribution Date (as hereinafter defined) occurs as set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By:_____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class X-1 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By:_____________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-3

CLASS X-2 CERTIFICATE

THIS CERTIFICATE IS NOT ENTITLED TO DISTRIBUTIONS OF INTEREST, HAS NO PRINCIPAL BALANCE AND WILL ONLY RECEIVE DISTRIBUTIONS TO THE EXTENT DESCRIBED IN THE AGREEMENT REFERRED TO HEREIN.

Certificate No. 1

Class X-2	Variable Pass-Through Rate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005
	Percentage Interest: 100%
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RX 8

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class X-2 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

This Certificate will not be entitled to distributions of interest, has no principal balance and will receive distributions only to the extent set forth in the Agreement. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December__, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By:________________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class X-2 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By:________________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-4

CLASS P CERTIFICATE

Certificate No. 1

Class P

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $100

Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Denomination: $100

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RC 4

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class P Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Nomura Asset Acceptance Corporation (“NAAC”), the Securities Administrator or the Trustee referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by NAAC, the Securities Administrator or the Trustee or any of their affiliates or any other person. None of NAAC, the Securities Administrator, the Trustee or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator, the Trustee and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By:____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class P Certificates referred to in the within-mentioned Agreement.

WELLS FARGO, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By:____________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

This information is provided by

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-5

CLASS R CERTIFICATE

THIS CERTIFICATE MAY NOT BE HELD BY OR TRANSFERRED TO A NON-UNITED STATES PERSON OR A DISQUALIFIED ORGANIZATION (AS DEFINED BELOW).

SOLELY FOR U.S. FEDERAL INCOME TAX PURPOSES, THIS CERTIFICATE IS A “RESIDUAL INTEREST” IN A “REAL ESTATE MORTGAGE INVESTMENT CONDUIT” AS THOSE TERMS ARE DEFINED, RESPECTIVELY, IN SECTIONS 860G AND 860D OF THE INTERNAL REVENUE CODE OF 1986 (THE “CODE”).

ANY RESALE, TRANSFER OR OTHER DISPOSITION OF THIS CERTIFICATE MAY BE MADE ONLY IF THE PROPOSED TRANSFEREE PROVIDES A TRANSFER AFFIDAVIT TO THE SECURITIES ADMINISTRATOR THAT (1) SUCH TRANSFEREE IS NOT (A) THE UNITED STATES, ANY STATE OR POLITICAL SUBDIVISION THEREOF, ANY POSSESSION OF THE UNITED STATES, OR ANY AGENCY OR INSTRUMENTALITY OF ANY OF THE FOREGOING (OTHER THAN AN INSTRUMENTALITY WHICH IS A CORPORATION IF ALL OF ITS ACTIVITIES ARE SUBJECT TO TAX AND EXCEPT FOR FREDDIE MAC, A MAJORITY OF ITS BOARD OF DIRECTORS IS NOT SELECTED BY SUCH GOVERNMENTAL UNIT), (B) A FOREIGN GOVERNMENT, ANY INTERNATIONAL ORGANIZATION, OR ANY AGENCY OR INSTRUMENTALITY OF EITHER OF THE FOREGOING, (C) ANY ORGANIZATION (OTHER THAN CERTAIN FARMERS’ COOPERATIVES DESCRIBED IN SECTION 521 OF THE CODE) WHICH IS EXEMPT FROM THE TAX IMPOSED BY CHAPTER 1 OF THE CODE UNLESS SUCH ORGANIZATION IS SUBJECT TO THE TAX IMPOSED BY SECTION 511 OF THE CODE (INCLUDING THE TAX IMPOSED BY SECTION 511 OF THE CODE ON UNRELATED BUSINESS TAXABLE INCOME), (D) RURAL ELECTRIC AND TELEPHONE COOPERATIVES DESCRIBED IN SECTION 1381(a)(2)(C) OF THE CODE, (E) AN ELECTING LARGE PARTNERSHIP UNDER SECTION 775(a) OF THE CODE (ANY SUCH PERSON DESCRIBED IN THE FOREGOING CLAUSES (A), (B), (C), (D) OR (E) BEING HEREIN REFERRED TO AS A “DISQUALIFIED ORGANIZATION”), OR (F) AN AGENT OF A DISQUALIFIED ORGANIZATION, (2) NO PURPOSE OF SUCH TRANSFER IS TO IMPEDE THE ASSESSMENT OR COLLECTION OF TAX AND (3) SUCH TRANSFEREE SATISFIES CERTAIN ADDITIONAL CONDITIONS RELATING TO THE FINANCIAL CONDITION OF THE PROPOSED TRANSFEREE. NOTWITHSTANDING THE REGISTRATION IN THE CERTIFICATE REGISTER OR ANY TRANSFER, SALE OR OTHER DISPOSITION OF THIS CERTIFICATE TO A DISQUALIFIED ORGANIZATION OR AN AGENT OF A DISQUALIFIED ORGANIZATION, SUCH REGISTRATION SHALL BE DEEMED TO BE OF NO LEGAL FORCE OR EFFECT WHATSOEVER AND SUCH PERSON SHALL NOT BE DEEMED TO BE A CERTIFICATEHOLDER FOR ANY PURPOSE HEREUNDER, INCLUDING, BUT NOT LIMITED TO, THE RECEIPT OF DISTRIBUTIONS ON THIS CERTIFICATE. EACH HOLDER OF THIS CERTIFICATE BY ACCEPTANCE OF THIS CERTIFICATE SHALL BE DEEMED TO HAVE CONSENTED TO THE PROVISIONS OF THIS PARAGRAPH.

Certificate No. 1

Class R	Percentage Interest: 100%

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005

First Distribution Date: December 25, 2005

Trustee: HSBC Bank USA, National Association	CUSIP: 65535V RD 2

Assumed Final Distribution Date: October 25, 2035

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class R Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

This Certificate is payable solely from the assets of the Trust Fund, and does not represent an obligation of or interest in Nomura Asset Acceptance Corporation (“NAAC”), the Securities Administrator or the Trustee referred to below or any of their affiliates or any other person. Neither this Certificate nor the underlying Mortgage Loans are guaranteed or insured by any governmental entity or by NAAC, the Securities Administrator or the Trustee or any of their affiliates or any other person. None of NAAC, the Securities Administrator, the Trustee or any of their affiliates will have any obligation with respect to any certificate or other obligation secured by or payable from payments on the Certificates.

Each Holder of this Certificate will be deemed to have agreed to be bound by the restrictions set forth in the Agreement to the effect that (i) each person holding or acquiring any Ownership Interest in this Certificate must be a United States Person and a Permitted Transferee, (ii) the transfer of any Ownership Interest in this Certificate will be conditioned upon the delivery to the Securities Administrator of, among other things, an affidavit to the effect that it is a United States Person and Permitted Transferee, (iii) any attempted or purported transfer of any Ownership Interest in this Certificate in violation of such restrictions will be absolutely null and void and will vest no rights in the purported transferee, and (iv) if any person other than a United States Person and a Permitted Transferee acquires any Ownership Interest in this Certificate in violation of such restrictions, then the Depositor will have the right, in its sole discretion and without notice to the Holder of this Certificate, to sell this Certificate to a purchaser selected by the Depositor, which purchaser may be the Depositor, or any affiliate of the Depositor, on such terms and conditions as the Depositor may choose.

The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amounts required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: __________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class R Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: _________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-6

CLASS A-IO CERTIFICATE

THIS CERTIFICATE HAS NO PRINCIPAL BALANCE AND IS NOT ENTITLED TO DISTRIBUTIONS IN RESPECT OF PRINCIPAL.

Certificate No. 1	Pass-Through Rate: 20.00%, subject to the applicable Net Funds Cap

Class A-IO Senior

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Class A-IO Notional Amount of this Certificate as of the Cut-off Date: $27,514,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Class A-IO Notional Amount of this Certificate as of the Cut-off Date: $27,514,000

Assumed Final Distribution Date: June 25, 2008	CUSIP: 65535V QZ 4

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class A-IO Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION

Interest on this Certificate will accrue during the calendar month prior to the calendar month in which a Distribution Date (as hereinafter defined) occurs on the Class A-IO Notional Amount hereof at a per annum Pass-Through Rate equal to the lesser of (i) 20.00% per annum and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above and ending on the Assumed Final Distribution Date, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in June 2008. This Certificate has no principal balance and is not entitled to distributions in respect of principal.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Class A-IO Notional Amount of this Certificate is set forth above.

This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for the interests, rights and limitations of rights, benefits, obligations and duties evidenced hereby, and the rights, duties and immunities of the Securities Administrator. The Certificates are limited in right of payment to certain collections and recoveries respecting the Mortgage Loans, all as more specifically set forth in the Agreement.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated:

December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: __________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the Class A-IO Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A

Authorized signatory of Wells Fargo Bank,

N.A. not in its individual capacity but solely

as Securities Administrator

By: _________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS B-1 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES AND THE CLASS M CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

THIS CERTIFICATE HAS NO PRINCIPAL BALANCE AND IS NOT ENTITLED TO DISTRIBUTIONS IN RESPECT OF PRINCIPAL.

Certificate No. 1	Pass-Through Rate: 8.00% per annum, subject to the applicable Net Funds Cap

Class B-1 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Class B-1 Notional Amount of this Certificate as of the Cut-off Date: $3,989,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Class B-1 Notional Amount of this Certificate as of the Cut-off Date: $3,989,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QX 9

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class B-1 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 1.65% or (B) after the first possible optional termination date, 2.475% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ____________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the B-1 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: ___________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS B-2 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M CERTIFICATES AND CLASS B-1 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1

Class B-2 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,714,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,714,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V QY 7

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class B-2 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 2.25% or (B) after the first possible optional termination date, 3.375% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: _________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the B-2 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: ________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS B-3 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M CERTIFICATES, THE CLASS B-1 CERTIFICATES AND THE CLASS B-2 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1

Class B-3 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,989,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 3,989,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RA 8

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

Interest on this Certificate will accrue during the period commencing on the immediately preceding Distribution Date (as hereinafter defined) (or with respect to the First Distribution Date, the Closing Date) and ending on the day immediately preceding the related Distribution Date on the Certificate Principal Balance hereof at a per annum Pass-Through Rate equal to the lesser of (i) the sum of one-month LIBOR for that Distribution Date plus (A) on or prior to the first possible optional termination date, 2.50% or (B) after the first possible optional termination date, 3.75% and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the Business Day immediately preceding such Distribution Date, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest and principal, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance of this Class of Certificates will be reduced to zero.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ___________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the B-3 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: __________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS B-4 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M CERTIFICATES, THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES AND THE CLASS B-3 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1

Class B-4 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 2,889,000
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 2,889,000

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RE 0

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class B-4 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the calendar month prior to the calendar month in which a Distribution Date (as hereinafter defined) occurs on the Class B-4 Principal Amount hereof at a per annum Pass-Through Rate equal to the lesser of (i) 8.00% per annum and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Principle Amount of this Certificate is set forth above.

This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for the interests, rights and limitations of rights, benefits, obligations and duties evidenced hereby, and the rights, duties and immunities of the Securities Administrator. The Certificates are limited in right of payment to certain collections and recoveries respecting the Mortgage Loans, all as more specifically set forth in the Agreement.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only on any Distribution Date on or after the later of (i) the Distribution Date in April 2008 and (ii) the Distribution Date on which the aggregate Stated Principal Balance of the Mortgage Loans is less than or equal to 10% of the aggregate Stated Principal Balance of the Mortgage Loans at the Cut-off Date. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ___________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the B-4 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank,

N.A., not in its individual capacity but solely

as Securities Administrator

By: __________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT A-2

CLASS B-5 CERTIFICATE

THIS CERTIFICATE IS SUBORDINATED IN RIGHT OF PAYMENT TO THE SENIOR CERTIFICATES, THE CLASS M CERTIFICATES, THE CLASS B-1 CERTIFICATES, THE CLASS B-2 CERTIFICATES, THE CLASS B-3 CERTIFICATES AND THE CLASS B-4 CERTIFICATES AS DESCRIBED IN THE AGREEMENT (AS DEFINED BELOW).

Certificate No. 1

Class B-5 Subordinate

Date of Pooling and Servicing Agreement and Cut-off Date: December 1, 2005	Aggregate Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 2,755,691
Trustee: HSBC Bank USA, National Association
First Distribution Date: December 25, 2005	Initial Certificate Principal Balance of this Certificate as of the Cut-off Date: $ 2,755,691

Assumed Final Distribution Date: October 25, 2035	CUSIP: 65535V RF 7

MORTGAGE PASS-THROUGH CERTIFICATE

SERIES 2005-S4

evidencing a fractional undivided interest in the distributions allocable to the Class B-5 Certificates with respect to a Trust Fund consisting primarily of a pool of conventional one- to four-family fixed interest rate mortgage loans sold by NOMURA ASSET ACCEPTANCE CORPORATION.

Interest on this Certificate will accrue during the calendar month prior to the calendar month in which a Distribution Date (as hereinafter defined) occurs on the Class B-5 Principal Amount hereof at a per annum Pass-Through Rate equal to the lesser of (i) 8.00% per annum and (ii) the applicable Net Funds Cap. The Securities Administrator will distribute on the 25th day of each month, or, if such 25th day is not a Business Day, the immediately following Business Day (each, a “Distribution Date”), commencing on the First Distribution Date specified above, to the Person in whose name this Certificate is registered at the close of business on the last day (or if such last day is not a Business Day, the Business Day immediately preceding such last day) of the calendar month immediately preceding the month in which the Distribution Date occurs, an amount equal to the product of the Percentage Interest evidenced by this Certificate and the amount (of interest, if any) required to be distributed to the Holders of Certificates of the same Class as this Certificate. The Assumed Final Distribution Date is the Distribution Date in the month following the latest scheduled maturity date of any Mortgage Loan and is not likely to be the date on which the Certificate Principal Balance will be reduced to zero.

Distributions on this Certificate will be made by the Securities Administrator by check mailed to the address of the Person entitled thereto as such name and address shall appear on the Certificate Register or, if such Person so requests by notifying the Securities Administrator in writing as specified in the Agreement. Notwithstanding the above, the final distribution on this Certificate will be made after due notice by the Securities Administrator of the pendency of such distribution and only upon presentation and surrender of this Certificate at the office or agency appointed by the Securities Administrator for that purpose and designated in such notice. The initial Principle Amount of this Certificate is set forth above.

This Certificate does not purport to summarize the Agreement and reference is made to the Agreement for the interests, rights and limitations of rights, benefits, obligations and duties evidenced hereby, and the rights, duties and immunities of the Securities Administrator. The Certificates are limited in right of payment to certain collections and recoveries respecting the Mortgage Loans, all as more specifically set forth in the Agreement.

The Agreement permits, with certain exceptions therein provided, the amendment thereof and the modification of the rights and obligations of the Depositor and the rights of the Certificateholders under the Agreement from time to time by the parties thereto with the consent of the Holders of the Class or Classes of Certificates affected thereby evidencing over 50% of the Voting Rights of such Class or Classes. Any such consent by the Holder of this Certificate shall be conclusive and binding on such Holder and upon all future Holders of this Certificate and of any Certificate issued upon the transfer hereof or in lieu hereof whether or not notation of such consent is made upon this Certificate. The Agreement also permits the amendment thereof, in certain limited circumstances, without the consent of the Holders of any of the Certificates.

No service charge will be made to the Certificateholders for any such registration of transfer, but the Securities Administrator may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. The Depositor, the Trustee, the Securities Administrator and any agent of any of them may treat the Person in whose name this Certificate is registered as the owner hereof for all purposes, and none of the Depositor, the Securities Administrator, the Trustee or any such agent shall be affected by notice to the contrary.

The obligations created by the Agreement and the Trust Fund created thereby (other than the obligations to make payments to Certificateholders with respect to the termination of the Agreement) shall terminate upon the earlier of (i) the later of (A) the maturity or other liquidation (or Advance with respect thereto) of the last Mortgage Loan remaining in the Trust Fund and disposition of all property acquired upon foreclosure or deed in lieu of foreclosure of any Mortgage Loan and (B) the remittance of all funds due under the Agreement, or (ii) the optional repurchase by the party named in the Agreement of all the Mortgage Loans and other assets of the Trust Fund in accordance with the terms of the Agreement. Such optional repurchase may be made only on any Distribution Date on or after the later of (i) the Distribution Date in April 2008 and (ii) the Distribution Date on which the aggregate Stated Principal Balance of the Mortgage Loans is less than or equal to 10% of the aggregate Stated Principal Balance of the Mortgage Loans at the Cut-off Date. The exercise of such right will effect the early retirement of the Certificates. In no event, however, will the Trust Fund created by the Agreement continue beyond the expiration of 21 years after the death of certain persons identified in the Agreement.

IN WITNESS WHEREOF, the Securities Administrator has caused this Certificate to be duly executed.

Dated: December __, 2005

WELLS FARGO BANK, N.A.

not in its individual capacity but solely as

Securities Administrator

By: ______________________________

Authorized Signatory

CERTIFICATE OF AUTHENTICATION

This is one of the B-5 Certificates referred to in the within-mentioned Agreement.

WELLS FARGO BANK, N.A.

Authorized signatory of Wells Fargo Bank, N.A., not in its individual capacity but solely as Securities Administrator

By: _______________________________

Authorized Signatory

ASSIGNMENT

I (We) further direct the Certificate Registrar to issue a new Certificate of a like denomination and Class, to the above named assignee and deliver such Certificate to the following address:

______________________________________________________________________________

Dated:

__________________________________________

Signature by or on behalf of assignor

__________________________________________

Signature Guaranteed

DISTRIBUTION INSTRUCTIONS

The assignee should include the following for purposes of distribution:

__________________, the assignee named above, or ________________________, as its agent.

EXHIBIT B

MORTGAGE LOAN SCHEDULE

The Preliminary and Final Mortgage Loan Schedules shall set forth the following information with respect to each Mortgage Loan:

(a)

the loan number;

(b)

the Mortgage Rate in effect as of the Cut-off Date;

(c)

the Servicing Fee Rate;

(d)

the Net Mortgage Rate in effect as of the Cut-off Date;

(e)

the maturity date;

(f)

the original principal balance;

(g)

the Cut-off Date Principal Balance;

(h)

the original term;

(i)

the remaining term;

(j)

the property type; and

(k)

the MIN with respect to each Mortgage Loan.

EXHIBIT C-1

INITIAL CERTIFICATION

Nomura Asset Acceptance Corporation

HSBC Bank USA, National Association

Nomura Credit & Capital, Inc.

452 Fifth Avenue

2 World Financial Center, Building B

New York, New York 10018

New York, New York 10281

Attention:

Nomura Asset Acceptance Corp. 2005-S4

Re:

Pooling and Servicing Agreement, dated as of December 1, 2005, among Nomura Asset Acceptance Corporation, as depositor, Nomura Credit & Capital, Inc., as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator and master servicer, and HSBC Bank USA, National Association, as trustee, issuing Mortgage-Pass Through Certificates, Series 2005-S4

Ladies and Gentlemen:

In accordance with Section 2.02(a) of the above-captioned Pooling and Servicing Agreement, the undersigned, hereby certifies that, except as otherwise noted on the attached exception report, that as to each Mortgage Loan listed on the Mortgage Loan Schedule (other than any Mortgage Loan paid in full or listed on the attachment hereto) it has reviewed the Mortgage File and the Mortgage Loan Schedule and has determined that: (i) all documents required to be included in the Mortgage File pursuant to the Pooling and Servicing Agreement are in its possession; (ii) such documents have been reviewed by it and appear regular on their face, have, where applicable, been executed and relate to such Mortgage Loan; and (iii) based on examination by it, and only as to such documents, the information set forth in the Mortgage Loan Schedule as to Mortgagor Name, original principal balance and loan number respecting such Mortgage Loan is correct and accurately reflects the information in the Mortgage Loan File.

The undersigned has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the above-referenced Pooling and Servicing Agreement. The undersigned makes no representation that any documents specified in subclauses (iv) and (vi) of the third paragraph of Section 2.01 should be included in any Mortgage File. The undersigned makes no representations as to: (i) the validity, legality, enforceability, recordability, sufficiency, due authorization or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule or (ii) the collectability, insurability, effectiveness or suitability of any such Mortgage Loan.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Pooling and Servicing Agreement.

WELLS FARGO BANK, N.A.,

as Custodian

By: ____________________________

Name:

Title:

EXHIBIT C-2

INTERIM CERTIFICATION

Nomura Asset Acceptance Corporation

HSBC Bank USA, National Association

Nomura Credit & Capital, Inc.

452 Fifth Avenue

2 World Financial Center, Building B

New York, New York 10018

New York, New York 10281

Attention:

Nomura Asset Acceptance Corp. 2005-S4

Re:

Ladies and Gentlemen:

The undersigned has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the above-referenced Pooling and Servicing Agreement. The undersigned makes no representation that any documents specified in subclauses (iv) and (vi) of the third paragraph of Section 2.01 should be included in any Mortgage File. The undersigned makes no representations as to: (i) the validity, legality, enforceability, recordabililty, sufficiency, due authorization or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule or (ii) the collectability, insurability, effectiveness or suitability of any such Mortgage Loan.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Pooling and Servicing Agreement.

WELLS FARGO BANK, N.A.,

as Custodian

By: __________________________

Name

Title:

EXHIBIT C-3

FINAL CERTIFICATION

Nomura Asset Acceptance Corporation

HSBC Bank USA, National Association

Nomura Credit & Capital, Inc.

452 Fifth Avenue

2 World Financial Center, Building B

New York, New York 10018

New York, New York 10281

Attention:

Nomura Asset Acceptance Corp. 2005-S4

Re:

Ladies and Gentlemen:

In accordance with Section 2.02(b) of the above-captioned Pooling and Servicing Agreement, the undersigned, hereby certifies that, except as otherwise noted on the attached exception report, that as to each Mortgage Loan listed on the Mortgage Loan Schedule (other than any Mortgage Loan paid in full or listed on the attachment hereto) it has received the documents set forth in Section 2.01 of the Agreement and has determined that (i) all documents required to be included in the Mortgage File pursuant to the Pooling and Servicing Agreement are in its possession; (ii) such documents have been reviewed by it and appear regular on their face, have, where applicable, been executed and relate to such Mortgage Loan; and (iii) based on examination by it, and only as to such documents, the information set forth in the Mortgage Loan Schedule as to Mortgagor name, original principal balance and loan number respecting such Mortgage Loan is correct and accurately reflects the information in the Mortgage Loan File

The undersigned has made no independent examination of any documents contained in each Mortgage File beyond the review specifically required in the above-referenced Pooling and Servicing Agreement. The undersigned makes no representation that any documents specified in subclauses (iv) and (vi) of the third paragraph of Section 2.01 of the Agreement should be included in any Mortgage File. The undersigned makes no representations as to: (i) the validity, legality, enforceability, recordability, sufficiency, due authorization or genuineness of any of the documents contained in each Mortgage File of any of the Mortgage Loans identified on the Mortgage Loan Schedule or (ii) the collectability, insurability, effectiveness or suitability of any such Mortgage Loan.

Capitalized words and phrases used herein shall have the respective meanings assigned to them in the above-captioned Pooling and Servicing Agreement.

WELLS FARGO BANK, N.A.,

as Custodian

By: _________________________

Name:

Title:

EXHIBIT D

TRANSFER AFFIDAVIT

Affidavit pursuant to Section 860E(e)(4) of the Internal Revenue Code of 1986, as amended, and for other purposes

STATE OF

)

)ss:

COUNTY OF

)

[NAME OF OFFICER], being first duly sworn, deposes and says:

That he/she is [Title of Officer] of [Name of Investor] (the “Investor”), a [savings institution] [corporation] duly organized and existing under the laws of [the State of _____] [the United States], on behalf of which he makes this affidavit.

That (i) the Investor is not a “disqualified organization” as defined in Section 860E(e)(5) of the Internal Revenue Code of 1986, as amended (the “Code”), and will not be a disqualified organization as of [Closing Date] [date of purchase]; (ii) it is not acquiring the Nomura Asset Acceptance Corporation Alternative Loan Trust, Mortgage Pass Through Certificates, Series 2005-S3, Class R Certificates (the “Residual Certificates”) for the account of a disqualified organization; (iii) it consents to any amendment of the Pooling and Servicing Agreement that shall be deemed necessary by Nomura Asset Acceptance Corporation (upon advice of counsel) to constitute a reasonable arrangement to ensure that the Residual Certificates will not be owned directly or indirectly by a disqualified organization; and (iv) it will not transfer such Residual Certificates unless (a) it has received from the transferee an affidavit in substantially the same form as this affidavit containing these same four representations and (b) as of the time of the transfer, it does not have actual knowledge that such affidavit is false.

That the Investor is one of the following: (i) a citizen or resident of the United States, (ii) a corporation or partnership (including an entity treated as a corporation or partnership for federal income tax purposes) created or organized in, or under the laws of, the United States or any state thereof or the District of Columbia (except, in the case of a partnership, to the extent provided in regulations), provided that no partnership or other entity treated as a partnership for United States federal income tax purposes shall be treated as a United States Person unless all persons that own an interest in such partnership either directly or through any entity that is not a corporation for United States federal income tax purposes are United States Persons, (iii) an estate whose income is subject to United States federal income tax regardless of its source, or (iv) a trust other than a “foreign trust,” as defined in Section 7701 (a)(31) of the Code.

That the Investor’s taxpayer identification number is ______________________.

That no purpose of the acquisition of the Residual Certificates is to avoid or impede the assessment or collection of tax.

That the Investor understands that, as the holder of the Residual Certificates, the Investor may incur tax liabilities in excess of any cash flows generated by such Residual Certificates.

That the Investor intends to pay taxes associated with holding the Residual Certificates as they become due.

That the Owner:

(a) is not an employee benefit plan or arrangement subject to the prohibited transaction provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”) or Section 4975 of the Internal Revenue Code of 1986, as amended (the “Code”) (a “Plan”), or any other person purchasing any Certificate for, on behalf of or with the assets of any such plan or arrangement; or

(b) if the Certificate is the subject of an ERISA-Qualifying Underwriting under Prohibited Transaction Exemption 2002-41, is an insurance company which is purchasing such Certificates with funds contained in an “insurance company general account” (as such term is defined in Section V(e) of Prohibited Transaction Class Exemption 95-60 (“PTCE 95-60”)) and the purchase and holding of such Certificate are covered under Sections I and III of PTCE 95-60.

(c) provides an Opinion of Counsel which establishes to the reasonable satisfaction of the Certificate Registrar that the purchase and holding of an ERISA-Restricted Certificate for, on behalf of or with the assets of such plan or arrangement will not result in non-exempt prohibited transactions under Section 406 of ERISA or Section 4975 of the Code, and will not subject the Depositor, the Seller, the Servicer or the Trustee to any obligation in addition to those undertaken in the Pooling and Servicing Agreement.

IN WITNESS WHEREOF, the Investor has caused this instrument to be executed on its behalf, pursuant to authority of its Board of Directors, by its [Title of Officer] this ____ day of _________, 20__.

[NAME OF INVESTOR]

By:_________________________________

[Name of Officer]

[Title of Officer]

[Address of Investor for receipt of

distributions]

Address of Investor for receipt of tax

information:

Personally appeared before me the above-named [Name of Officer], known or proved to me to be the same person who executed the foregoing instrument and to be the [Title of Officer] of the Investor, and acknowledged to me that he/she executed the same as his/her free act and deed and the free act and deed of the Investor.

Subscribed and sworn before me this ___ day of _________, 20___.

NOTARY PUBLIC

COUNTY OF

STATE OF

My commission expires the ___ day of ___________________, 20___.

EXHIBIT E

TRANSFEROR CERTIFICATE

December 22, 2004

Nomura Asset Acceptance Corporation

2 World Financial Center, Building B

New York, New York 10281

Wells Fargo Bank, N.A.

Sixth Street and Marquette Avenue

Minneapolis, Minnesota 55479

Attention: Nomura Asset Acceptance

Corporation, Alternative Loan Trust, Series 2005-S4

Re:

Nomura Asset Acceptance Corporation

Mortgage Pass-Through Certificates, Series 2005-S4, Class__

Ladies and Gentlemen:

In connection with the sale by ___________ (the “Seller”) to ________ (the “Purchaser”) of $_________ Initial Certificate Principal Balance of Mortgage Pass-Through Certificates, Series 2005-S4, Class _____ (the “Certificates”), issued pursuant to the Pooling and Servicing Agreement (the “Pooling and Servicing Agreement”), dated as of September 1, 2005, among Nomura Asset Acceptance Corporation, as depositor (the “Depositor”), Nomura Credit & Capital, Inc., as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator (the “Securities Administrator”), master servicer and a custodian, and HSBC Bank USA, National Association, as trustee (the “Trustee”). The Seller hereby certifies, represents and warrants to, a covenants with, the Depositor, the Securities Administrator and the Trustee that:

Neither the Seller nor anyone acting on its behalf has (a) offered, pledged, sold, disposed of or otherwise transferred any Certificate, any interest in any Certificate or any other similar security to any person in any manner, (b) has solicited any offer to buy or to accept a pledge, disposition or other transfer of any Certificate, any interest in any Certificate or any other similar security from any person in any manner, (c) has otherwise approached or negotiated with respect to any Certificate, any interest in any Certificate or any other similar security with any person in any manner, (d) has made any general solicitation by means of general advertising or in any other manner, or (e) has taken any other action, that (as to any of (a) through (e) above) would constitute a distribution of the Certificates under the Securities Act of 1933 (the “Act”), that would render the disposition of any Certificate a violation of Section 5 of the Act or any state securities law, or that would require registration or qualification pursuant thereto. The Seller will not act in any manner set forth in the foregoing sentence with respect to any Certificate. The Seller has not and will not sell or otherwise transfer any of the Certificates, except in compliance with the provisions of the Pooling and Servicing Agreement.

	Very truly yours, _______________________________ (Seller)

	By:_____________________________ Name:___________________________ Title:_____________________________

EXHIBIT F

INVESTOR REPRESENTATION LETTER (NON-RULE 144A)

December 22, 2005

Nomura Asset Acceptance Corporation

2 World Financial Center

New York, New York 10281

Wells Fargo Bank, N.A.

Sixth Street and Marquette Avenue

Minneapolis, Minnesota 55479

Attention: Nomura Asset Acceptance Corporation,

Alternative Loan Trust, 2005-S4

Re:

Nomura Asset Acceptance Corporation, Alternative Loan Trust,

Mortgage Pass-Through Certificates, Series 2005-S4

Ladies and Gentlemen:

_______________ (the “Purchaser”) intends to purchase from ____________ (the “Seller”) $_________ Initial Certificate Principal Balance of Mortgage Pass-Through Certificates, Series 2005-S4, Class _____ (the “Certificates”), issued pursuant to the Pooling and Servicing Agreement (the “Pooling and Servicing Agreement”), dated as of December 1, 2005, among Nomura Asset Acceptance Corporation, as depositor (the “Depositor”), Nomura Credit & Capital, Inc., as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator (the “Securities Administrator”), master servicer and a custodian, and HSBC Bank USA , N.A., as trustee (the “Trustee”). All terms used herein and not otherwise defined shall have the meanings set forth in the Pooling and Servicing Agreement. The Purchaser hereby certifies, represents and warrants to, and covenants with, the Depositor, the Securities Administrator and the Trustee that:

The Purchaser understands that (a) the Certificates have not been and will not be registered or qualified under the Securities Act of 1933, as amended (the “Act”) or any state securities law, (b) the Depositor is not required to so register or qualify the Certificates, (c) the Certificates may be resold only if registered and qualified pursuant to the provisions of the Act or any state securities law, or if an exemption from such registration and qualification is available, (d) the Pooling and Servicing Agreement contains restrictions regarding the transfer of the Certificates and (e) the Certificates will bear a legend to the foregoing effect.

The Purchaser is acquiring the Certificates for its own account for investment only and not with a view to or for sale in connection with any distribution thereof in any manner that would violate the Act or any applicable state securities laws.

The Purchaser is (a) a substantial, sophisticated institutional investor having such knowledge and experience in financial and business matters, and, in particular, in such matters related to securities similar to the Certificates, such that it is capable of evaluating the merits and risks of investment in the Certificates, (b) able to bear the economic risks of such an investment and (c) an “qualified institutional buyer” within the meaning of Rule 144A promulgated pursuant to the Act.

The Purchaser has been furnished with, and has had an opportunity to review (a) a copy of the Pooling and Servicing Agreement and (b) such other information concerning the Certificates, the Mortgage Loans and the Depositor as has been requested by the Purchaser from the Depositor or the Seller and is relevant to the Purchaser’s decision to purchase the Certificates. The Purchaser has had any questions arising from such review answered by the Depositor or the Seller to the satisfaction of the Purchaser.

The Purchaser has not and will not nor has it authorized or will it authorize any person to (a) offer, pledge, sell, dispose of or otherwise transfer any Certificate, any interest in any Certificate or any other similar security to any person in any manner, (b) solicit any offer to buy or to accept a pledge, disposition of other transfer of any Certificate, any interest in any Certificate or any other similar security from any person in any manner, (c) otherwise approach or negotiate with respect to any Certificate, any interest in any Certificate or any other similar security with any person in any manner, (d) make any general solicitation by means of general advertising or in any other manner or (e) take any other action, that (as to any of (a) through (e) above) would constitute a distribution of any Certificate under the Act, that would render the disposition of any Certificate a violation of Section 5 of the Act or any state securities law, or that would require registration or qualification pursuant thereto. The Purchaser will not sell or otherwise transfer any of the Certificates, except in compliance with the provisions of the Pooling and Servicing Agreement.

The Purchaser either: (i) is not an employee benefit plan or arrangement that is subject to the Employee Retirement Income Security Act of 1974, as amended, or Section 4975 of the Internal Revenue Code of 1986, as amended, or an entity whose underlying assets include such plan’s or arrangement’s assets (a “Plan”), nor is it acquiring such certificates for, on behalf of or with the assets of, any such Plan (a “Benefit Plan Investor”), (ii) if it is a Benefit Plan Investor, it is providing an Opinion of Counsel which establishes to the reasonable satisfaction of the Certificate Registrar that the purchase and holding of ERISA-Restricted Certificates will not subject the Depositor, the Trustee, the Securities Administrator or the Servicer to any obligation in addition to those undertaken in the Pooling and Servicing Agreement or (iii) if, in the case of ERISA-Restricted Certificates that have been the subject of an ERISA-Qualifying Underwriting, it is an insurance company, it is purchasing such Certificates with funds contained in an “insurance company general account” (as such term is defined in Section V(e) of Prohibited Transaction Class Exemption 95-60 (“PTCE 95-60”)) and its purchase and holding of such Certificates are covered under Sections I and III of PTCE 95-60.

	Very truly yours, ________________________________ (Purchaser)

	By: _____________________________ Name: _____________________________ Title: _____________________________

EXHIBIT G

RULE 144A INVESTMENT LETTER

[Date]

Nomura Credit & Capital, Inc.

2 World Financial Center, Building B

New York, New York 10281

Nomura Asset Acceptance Corporation

2 World Financial Center

New York, New York 10281

Wells Fargo Bank, N.A.

Sixth Street and Marquette Avenue

Minneapolis, Minnesota 55479

Re:

Nomura Asset Acceptance Corporation, Alternative Loan Trust, Mortgage Pass-Through Certificates, Series 2005-S4 (the “Certificates”), including the Class Certificates (the “Private Certificates”)

Dear Ladies and Gentlemen:

In connection with our purchase of Certificates, we confirm that:

(i)

we understand that the Certificates are not being registered under the Securities Act of 1933, as amended (the “Act”) or any applicable state securities or “Blue Sky” laws, and are being sold to us in a transaction that is exempt from the registration requirements of such laws;

(ii)

any information we desired concerning the Certificates, the trust in which the Certificates represent the entire beneficial ownership interest (the “Trust”) or any other matter we deemed relevant to our decision to purchase Certificates has been made available to us;

(iii)

we are able to bear the economic risk of investment in Certificates; we are an “qualified institutional buyer” as defined in Rule 144A promulgated under the Act;

(iv)

we are acquiring Certificates for our own account, not as nominee for any other person, and not with a present view to any distribution or other disposition of the Certificates;

(v)

we agree the Certificates must be held indefinitely by us (and may not be sold, pledged, hypothecated or in any way disposed of) unless subsequently registered under the Act and any applicable state securities or “Blue Sky” laws or an exemption from the registration requirements of the Act and any applicable state securities or “Blue Sky” laws is available;

(vi)

we agree that in the event that at some future time we wish to dispose of or exchange any of the Certificates (such disposition or exchange not being currently foreseen or contemplated), we will not transfer or exchange any of the Certificates unless:

(A) (1) the sale is to an Eligible Purchaser (as defined below), (2) if required by the Pooling and Servicing Agreement (as defined below) a letter to substantially the same effect as either this letter or, if the Eligible Purchaser is a Qualified Institutional Buyer as defined under Rule 144A of the Act, the Rule 144A and Related Matters Certificate in the form attached to the Pooling and Servicing Agreement (as defined below) (or such other documentation as may be acceptable to the Securities Administrator) is executed promptly by the purchaser and delivered to the addressees hereof and (3) all offers or solicitations in connection with the sale, whether directly or through any agent acting on our behalf, are limited only to Eligible Purchasers and are not made by means of any form of general solicitation or general advertising whatsoever; and

(B)

if the Certificate is not registered under the Act (as to which we acknowledge you have no obligation), the Certificate is sold in a transaction that does not require registration under the Act and any applicable state securities or “blue sky” laws and, if Wells Fargo Bank, N.A. (the “Securities Administrator”) so requests, a satisfactory Opinion of Counsel is furnished to such effect, which Opinion of Counsel shall be an expense of the transferor or the transferee;

(vii)

we agree to be bound by all of the terms (including those relating to restrictions on transfer) of the Pooling and Servicing, pursuant to which the Trust was formed; we have reviewed carefully and understand the terms of the Pooling and Servicing Agreement;

(viii)

we either: (i) we are not an employee benefit plan or arrangement that is subject to the Employee Retirement Income Security Act of 1974, as amended, or Section 4975 of the Internal Revenue Code of 1986, as amended, or an entity whose underlying assets include such plan’s or arrangement’s assets (a “Plan”), nor are we acquiring such certificates for, on behalf of or with the assets of, any such Plan (a “Benefit Plan Investor”), (ii) if we are a Benefit Plan Investor, we are providing an Opinion of Counsel which establishes to the reasonable satisfaction of the Certificate Registrar that the purchase and holding of ERISA-Restricted Certificates will not subject the Depositor, the Securities Administrator, or the Servicer to any obligation in addition to those undertaken in the Pooling and Servicing Agreement or (iii) if, in the case of ERISA-Restricted Certificates that have been the subject of an ERISA-Qualifying Underwriting, we are an insurance company, we are purchasing such Certificates with funds contained in an “insurance company general account” (as such term is defined in Section V(e) of Prohibited Transaction Class Exemption 95-60 (“PTCE 95-60”)) and our purchase and holding of such Certificates are covered under Sections I and III of PTCE 95-60.

we understand that each of the Class ___ Certificates bears, and will continue to bear, legends substantially to the following effect: “THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (“THE ACT”). ANY RESALE OR TRANSFER OF THIS CERTIFICATE WITHOUT REGISTRATION THEREOF UNDER THE ACT MAY ONLY BE MADE IN A TRANSACTION EXEMPTED FROM THE REGISTRATION REQUIREMENTS OF THE ACT AND IN ACCORDANCE WITH THE PROVISIONS OF THE AGREEMENT REFERRED TO HEREIN.”

“Eligible Purchaser” means a corporation, partnership or other entity which we have reasonable grounds to believe and do believe (i) can make representations with respect to itself to substantially the same effect as the representations set forth herein, and (ii) is either a Qualified Institutional Buyer as defined under Rule 144A of the Act or an institutional “Accredited Investor” as defined under Rule 501 of the Act.

Terms not otherwise defined herein shall have the meanings assigned to them in the Pooling and Servicing Agreement, dated as of December 1, 2005, among Nomura Asset Acceptance Corporation, as depositor, Nomura Credit & Capital, Inc., as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator and master servicer, and HSBC Bank USA, National Association, as Trustee (the “Pooling and Servicing Agreement’).

If the Purchaser proposes that its Certificates be registered in the name of a nominee on its behalf, the Purchaser has identified such nominee below, and has caused such nominee to complete the Nominee Acknowledgment at the end of this letter.

Name of Nominee (if any):

IN WITNESS WHEREOF, this document has been executed by the undersigned who is duly authorized to do so on behalf of the undersigned Eligible Purchaser on the ___ day of ________, 20___.

Very truly yours,

[PURCHASER]

By: _______________________________

(Authorized Officer)

[By:_________________________

[Attorney-in-fact]

Nominee Acknowledgment

The undersigned hereby acknowledges and agrees that as to the Certificates being registered in its name, the sole beneficial owner thereof is and shall be the Purchaser identified above, for whom the undersigned is acting as nominee.

[NAME OF NOMINEE]

By: _____________________________

(Authorized Officer)

[By:________________________

[Attorney-in-fact]

EXHIBIT H

REQUEST FOR RELEASE OF DOCUMENTS

To:

HSBC Bank USA, National Association

452 Fifth Avenue

New York, New York 10018

RE:

Pooling and Servicing Agreement dated as of December 1, 2005, among Nomura Asset Acceptance Corporation, as depositor, Nomura Credit & Capital, Inc., as seller, GMAC Mortgage Corporation, as servicer, Wells Fargo Bank, N.A., as securities administrator and master servicer, and HSBC Bank USA, National Association, as Trustee

In connection with the administration of the Mortgage Loans held by you pursuant to the above-captioned Pooling and Servicing Agreement, we request the release, and hereby acknowledge receipt, of the Mortgage File for the Mortgage Loan described below, for the reason indicated.

Mortgage Loan Number:

Mortgagor Name, Address & Zip Code:

Reason for Requesting Documents (check one):

_____1.

Mortgage Paid in Full and proceeds have been deposited into the Custodial Account

_____2.

Foreclosure

_____3.

Substitution

_____4.

Other Liquidation

_____5.

Nonliquidation Reason:____________

_____6.

Mortgage Loan paid in full

By: ____________________________

(authorized signer)

Issuer: ___________________________

Address: _________________________

Date: ____________________________

EXHIBIT I

DTC Letter of Representations

[provided upon request]

EXHIBIT J

Schedule of Mortgage Loans with Lost Notes

[None]

EXHIBIT K

Prepayment Charge Schedule

EXHIBIT L

APPENDIX E – Standard & Poor’s Anti-Predatory Lending Categorization

Standard & Poor’s has categorized loans governed by anti-predatory lending laws in the Jurisdictions listed below into three categories based upon a combination of factors that include (a) the risk exposure associated with the assignee liability and (b) the tests and thresholds set forth in those laws. Note that certain loans classified by the relevant statute as Covered are included in Standard & Poor’s High Cost Loan Category because they included thresholds and tests that are typical of what is generally considered High Cost by the industry.

Standard & Poor’s High Cost Loan Categorization
State/Jurisdiction	Name of Anti-Predatory Lending Law/Effective Date	Category under Applicable Anti-Predatory Lending Law
Arkansas	Arkansas Home Loan Protection Act, Ark. Code Ann. §§ 23-53-101 et seq. Effective July 16, 2003	High Cost Home Loan
Cleveland Heights, OH	Ordinance No. 72-2003 (PSH), Mun. Code §§ 757.01 et seq. Effective September 2, 2003	Covered Loan
Colorado	Consumer Equity Protection, Colo. Stat. Ann. §§ 5-3.5-101 et seq. Effective for covered loans offered or entered into on or after January 1, 2003. Other provisions of the Act took effect on September 7, 2002	Covered Loan
Connecticut	Connecticut Abusive Home Loan Lending Practices Act, Conn. Gen. Stat. §§ 36a-746 et seq. Effective October 1, 2001	High Cost Home Loan
District of Columbia	Home Loan Protection Act, D.C. Code §§ 26-1151.01 et seq. Effective for loans closed on or after January 28, 2003	Covered Loan
Florida	Fair Lending Act, Fla. Stat. Ann. §§ 494.0078 et seq. Effective October 2, 2002	High Cost Home Loan
Georgia (Oct. 1, 2002 – Mar. 6, 2003)	Georgia Fair Lending Act, Ga. Code Ann. §§ 7-6A-1 et seq. Effective October 1, 2002 – March 6, 2003	High Cost Home Loan
Georgia as amended (Mar. 7, 2003 – current)	Georgia Fair Lending Act, Ga. Code Ann. §§ 7-6A-1 et seq. Effective for loans closed on or after March 7, 2003	High Cost Home Loan
HOEPA Section 32	Home Ownership and Equity Protection Act of 1994, 15 U.S.C. § 1639, 12 C.F.R. §§ 226.32 and 226.34 Effective October 1, 1995, amendments October 1, 2002	High Cost Loan
Illinois	High Risk Home Loan Act, Ill. Comp. Stat. tit. 815, §§ 137/5 et seq. Effective January 1, 2004 (prior to this date, regulations under Residential Mortgage License Act effective from May 14, 2001)	High Risk Home Loan
Kansas	Consumer Credit Code, Kan. Stat. Ann. §§ 16a-1-101 et seq. Sections 16a-1-301 and 16a-3-207 became effective April 14, 1999; Section 16a-3-308a became effective July 1, 1999	High Loan to Value Consumer Loan (id. § 16a-3-207) and;
Kansas		High APR Consumer Loan (id. § 16a-3-308a)
Kentucky	2003 KY H.B. 287 – High Cost Home Loan Act, Ky. Rev. Stat. §§ 360.100 et seq. Effective September 24, 2003	High Cost Home Loan
Maine	Truth in Lending, Me. Rev. Stat. tit. 9-A, §§ 8-101 et seq. Effective September 29, 1995 and as amended from time to time	High Rate High Fee Mortgage
Massachusetts	Part 40 and Part 32, 209 C.M.R. §§ 32.00 et seq. and 209 C.M.R. §§ 40.01 et seq. Effective March 22, 2001 and amended from time to time	High Cost Home Loan
Nevada	Assembly Bill No. 284, Nev. Rev. Stat. §§ 598D.010 et seq. Effective October 1, 2003	Home Loan
New Jersey	New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq. Effective for loans closed on or after December 27, 2003	High Cost Home Loan
New Mexico	Home Loan Protection Act, N.M. Rev. Stat. §§ 58-21A-1 et seq. Effective as of January 1, 2004; Revised as of February 26, 2004	High Cost Home Loan
New York	N.Y. Banking Law Article 6-l Effective for applications made on or after April 1, 2003	High Cost Home Loan
North Carolina	Restrictions and Limitations on High Cost Home Loans, N.C. Gen. Stat. §§ 24-1.1E et seq. Effective July 1, 2000; amended October 1, 2003 (adding open-end lines of credit)	High Cost Home Loan
Ohio	H.B. 386 (codified in various sections of the Ohio Code), Ohio Rev. Code Ann. §§ 1349.25 et seq. Effective May 24, 2002	Covered Loan
Oklahoma	Consumer Credit Code (codified in various sections of Title 14A) Effective July 1, 2000; amended effective January 1, 2004	Subsection 10 Mortgage
South Carolina	South Carolina High Cost and Consumer Home Loans Act, S.C. Code Ann. §§ 37-23-10 et seq. Effective for loans taken on or after January 1, 2004	High Cost Home Loan
West Virginia	West Virginia Residential Mortgage Lender, Broker and Servicer Act, W. Va. Code Ann. §§ 31-17-1 et seq. Effective September 5, 2002	West Virginia Mortgage Loan Act Loan

Standard & Poor’s Covered Loan Categorization

State/Jurisdiction

Name of Anti-Predatory Lending Law/Effective Date

Category under Applicable Anti-Predatory Lending Law

Georgia (Oct. 1, 2002 – Mar. 6, 2003)

Georgia Fair Lending Act, Ga. Code Ann. §§ 7-6A-1 et seq.

Effective October 1, 2002 – March 6, 2003

Covered Loan

New Jersey

New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq.

Effective December 27, 2003 – July 5, 2004

Covered Home Loan

Standard & Poor’s Home Loan Categorization
State/Jurisdiction	Name of Anti-Predatory Lending Law/Effective Date	Category under Applicable Anti-Predatory Lending Law
Georgia (Oct. 1, 2002 – Mar. 6, 2003)	Georgia Fair Lending Act, Ga. Code Ann. §§ 7-6A-1 et seq. Effective October 1, 2002 – March 6, 2003	Home Loan
New Jersey	New Jersey Home Ownership Security Act of 2002, N.J. Rev. Stat. §§ 46:10B-22 et seq. Effective for loans closed on or after December 27, 2003	Home Loan
New Mexico	Home Loan Protection Act, N.M. Rev. Stat. §§ 58-21A-1 et seq. Effective as of January 1, 2004; Revised as of February 26, 2004	Home Loan
North Carolina	Restrictions and Limitations on High Cost Home Loans, N.C. Gen. Stat. §§ 24-1.1E et seq. Effective July 1, 2000; amended October 1, 2003 (adding open-end lines of credit)	Consumer Home Loan
South Carolina	South Carolina High Cost and Consumer Home Loans Act, S.C. Code Ann. §§ 37-23-10 et seq. Effective for loans taken on or after January 1, 2004	Consumer Home Loan

EXHIBIT M

FORMS OF INTEREST RATE CAP AGREEMENTS

[ON FILE WITH THE SECURITIES ADMINISTRATOR]

EXHIBIT N

CHARGED OFF LOAN DATA REPORT

(Available Upon Request)

EXHIBIT O

FORM OF SERVICER CERTIFICATION

Re:

Nomura Asset Acceptance Corporation, Alternative Loan Trust, Series 2005-S4 (the “Trust”)

I, [identify the certifying individual], a [title] of GMAC Mortgage Corporation, as Servicer of the Trust, hereby certify to Wells Fargo Bank, N.A. (the “Master Servicer”), and its officers, directors and affiliates, and with the knowledge and intent that they will rely upon this certification, that:

Based on my knowledge, the information in the Annual Statement of Compliance, the Annual Independent Public Accountant’s Servicing Report and all servicing reports, officer’s certificates and other information relating to the servicing of the Mortgage Loans submitted to the Master Servicer taken as a whole, does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading as of the date of this certification;

Based on my knowledge, the servicing information required to be provided to the Master Servicer by the Servicer under the Pooling and Servicing Agreement has been provided to the Master Servicer;

I am responsible for reviewing the activities performed by the Servicer under the Pooling and Servicing Agreement and based upon the review required by the Pooling and Servicing Agreement, and except as disclosed in the Annual Statement of Compliance, the Annual Independent Public Accountant’s Servicing Report and all servicing reports, officer’s certificates and other information relating to the servicing of the Mortgage Loans submitted to the Master Servicer, the Servicer has, for the period covered by this certification fulfilled its obligations under the Pooling and Servicing Agreement; and

I have disclosed to the Master Servicer all significant deficiencies relating to the Servicer’s compliance with the minimum servicing standards in accordance with a review conducted in compliance with the Uniform Single Attestation Program for Mortgage Bankers or similar standard as set forth in the Pooling and Servicing Agreement.

Date:

___________________

GMAC MORTGAGE CORPORATION,

as Servicer

By:

______________________

Name:

Title:

EXHIBIT P-1

CALCULATION OF REALIZED LOSS/GAIN FORM 332

Calculation of Realized Loss/Gain Form 332– Instruction Sheet

The numbers on the form correspond with the numbers listed below.

Liquidation and Acquisition Expenses:

The Actual Unpaid Principal Balance of the Mortgage Loan. For documentation, an Amortization Schedule from date of default through liquidation breaking out the net interest and servicing fees advanced is required.

The Total Interest Due less the aggregate amount of servicing fee that would have been earned if all delinquent payments had been made as agreed. For documentation, an Amortization Schedule from date of default through liquidation breaking out the net interest and servicing fees advanced is required.

Accrued Servicing Fees based upon the Scheduled Principal Balance of the Mortgage Loan as calculated on a monthly basis. For documentation, an Amortization Schedule from date of default through liquidation breaking out the net interest and servicing fees advanced is required.

4-12.

Complete as applicable. All line entries must be supported by copies of appropriate statements, vouchers, receipts, bills, canceled checks, etc., to document the expense. Entries not properly documented will not be reimbursed to the Servicer.

13.

The total of lines 1 through 12.

Credits:

14-21.

Complete as applicable. All line entries must be supported by copies of the appropriate claims forms, EOBs, HUD-1 and/or other proceeds verification, statements, payment checks, etc. to document the credit. If the Mortgage Loan is subject to a Bankruptcy Deficiency, the difference between the Unpaid Principal Balance of the Note prior to the Bankruptcy Deficiency and the Unpaid Principal Balance as reduced by the Bankruptcy Deficiency should be input on line 20.

22.

The total of lines 14 through 21.

Please note: For HUD/VA loans, use line (15) for Part A/Initial proceeds and line (16) for Part B/Supplemental proceeds.

(ix) Total Realized Loss (or Amount of Any Gain)

23.

The total derived from subtracting line 22 from 13. If the amount represents a realized gain, show the amount in parenthesis ( ).

Calculation of Realized Loss/Gain Form 332

WELLS FARGO BANK, N.A.

CALCULATION OF REALIZED LOSS/GAIN

Prepared by: __________________

Date: _______________

Phone: ______________________ Email Address:_____________________

Servicer Loan No.

Servicer Name

Servicer Address

WELLS FARGO BANK, N.A. Loan No._____________________________

Borrower's Name:________________________________________________________

Property Address:______________________________________________________________

Liquidation and Acquisition Expenses:

(1)

Actual Unpaid Principal Balance of Mortgage Loan

$ ______________

(1)

(2)

Interest accrued at Net Rate

________________

(2)

(3)

Accrued Servicing Fees

________________

(3)

(4)

Attorney's Fees

________________

(4)

(5)

Taxes

________________

(5)

(6)

Property Maintenance

________________

(6)

(7)

MI/Hazard Insurance Premiums

________________

(7)

(8)

Utility Expenses

________________

(8)

(9)

Appraisal/BPO

________________

(9)

(10)

Property Inspections

________________

(10)

(11)

FC Costs/Other Legal Expenses

________________

(11)

(12)

Other (itemize)

$________________

(12)

Cash for Keys__________________________

________________

HOA/Condo Fees_______________________

________________

______________________________________

________________

______________________________________

________________

Total Expenses

$ _______________

(13)

Credits:

(14)

Escrow Balance

$ _______________

(14)

(15)

HIP Refund

________________

(15)

(16)

Rental Receipts

________________

(16)

(17)

Hazard Loss Proceeds

________________

(17)

(18)

Primary Mortgage Insurance Proceeds

________________

(18)

(19)

Pool Insurance Proceeds

________________

(19)

(20)

Proceeds from Sale of Acquired Property

________________

(20)

(21)

Other (itemize)

________________

(21)

_________________________________________

_________________

_________________________________________

_________________

Total Credits

$________________

(22)

Total Realized Loss (or Amount of Gain)

$________________

(23)

EXHIBIT P-2

FORM OF STANDARD FILE LAYOUT – DELINQUENCY REPORTING

Standard File Layout – Delinquency Reporting

Column/Header Name	Description	Decimal	Format Comment
SERVICER_LOAN_NBR	A unique number assigned to a loan by the Servicer. This may be different than the LOAN_NBR
LOAN_NBR	A unique identifier assigned to each loan by the originator.
CLIENT_NBR	Servicer Client Number
SERV_INVESTOR_NBR	Contains a unique number as assigned by an external servicer to identify a group of loans in their system.
BORROWER_FIRST_NAME	First Name of the Borrower.
BORROWER_LAST_NAME	Last name of the borrower.
PROP_ADDRESS	Street Name and Number of Property
PROP_STATE	The state where the property located.
PROP_ZIP	Zip code where the property is located.
BORR_NEXT_PAY_DUE_DATE	The date that the borrower's next payment is due to the servicer at the end of processing cycle, as reported by Servicer.		MM/DD/YYYY
LOAN_TYPE	Loan Type (i.e. FHA, VA, Conv)
BANKRUPTCY_FILED_DATE	The date a particular bankruptcy claim was filed.		MM/DD/YYYY
BANKRUPTCY_CHAPTER_CODE	The chapter under which the bankruptcy was filed.
BANKRUPTCY_CASE_NBR	The case number assigned by the court to the bankruptcy filing.
POST_PETITION_DUE_DATE	The payment due date once the bankruptcy has been approved by the courts		MM/DD/YYYY
BANKRUPTCY_DCHRG_DISM_DATE	The Date The Loan Is Removed From Bankruptcy. Either by Dismissal, Discharged and/or a Motion For Relief Was Granted.		MM/DD/YYYY
LOSS_MIT_APPR_DATE	The Date The Loss Mitigation Was Approved By The Servicer		MM/DD/YYYY
LOSS_MIT_TYPE	The Type Of Loss Mitigation Approved For A Loan Such As;
LOSS_MIT_EST_COMP_DATE	The Date The Loss Mitigation /Plan Is Scheduled To End/Close		MM/DD/YYYY
LOSS_MIT_ACT_COMP_DATE	The Date The Loss Mitigation Is Actually Completed		MM/DD/YYYY
FRCLSR_APPROVED_DATE	The date DA Admin sends a letter to the servicer with instructions to begin foreclosure proceedings.		MM/DD/YYYY
ATTORNEY_REFERRAL_DATE	Date File Was Referred To Attorney to Pursue Foreclosure		MM/DD/YYYY
FIRST_LEGAL_DATE	Notice of 1st legal filed by an Attorney in a Foreclosure Action		MM/DD/YYYY
FRCLSR_SALE_EXPECTED_DATE	The date by which a foreclosure sale is expected to occur.		MM/DD/YYYY
FRCLSR_SALE_DATE	The actual date of the foreclosure sale.		MM/DD/YYYY
FRCLSR_SALE_AMT	The amount a property sold for at the foreclosure sale.	2	No commas(,) or dollar signs ($)
EVICTION_START_DATE	The date the servicer initiates eviction of the borrower.		MM/DD/YYYY
EVICTION_COMPLETED_DATE	The date the court revokes legal possession of the property from the borrower.		MM/DD/YYYY
LIST_PRICE	The price at which an REO property is marketed.	2	No commas(,) or dollar signs ($)
LIST_DATE	The date an REO property is listed at a particular price.		MM/DD/YYYY
OFFER_AMT	The dollar value of an offer for an REO property.	2	No commas(,) or dollar signs ($)
OFFER_DATE_TIME	The date an offer is received by DA Admin or by the Servicer.		MM/DD/YYYY
REO_CLOSING_DATE	The date the REO sale of the property is scheduled to close.		MM/DD/YYYY
REO_ACTUAL_CLOSING_DATE	Actual Date Of REO Sale		MM/DD/YYYY
OCCUPANT_CODE	Classification of how the property is occupied.
PROP_CONDITION_CODE	A code that indicates the condition of the property.
PROP_INSPECTION_DATE	The date a property inspection is performed.		MM/DD/YYYY
APPRAISAL_DATE	The date the appraisal was done.		MM/DD/YYYY
CURR_PROP_VAL	The current "as is" value of the property based on brokers price opinion or appraisal.	2
REPAIRED_PROP_VAL	The amount the property would be worth if repairs are completed pursuant to a broker's price opinion or appraisal.	2
If applicable:
DELINQ_STATUS_CODE	FNMA Code Describing Status of Loan
DELINQ_REASON_CODE	The circumstances which caused a borrower to stop paying on a loan. Code indicates the reason why the loan is in default for this cycle.
MI_CLAIM_FILED_DATE	Date Mortgage Insurance Claim Was Filed With Mortgage Insurance Company.		MM/DD/YYYY
MI_CLAIM_AMT	Amount of Mortgage Insurance Claim Filed		No commas(,) or dollar signs ($)
MI_CLAIM_PAID_DATE	Date Mortgage Insurance Company Disbursed Claim Payment		MM/DD/YYYY
MI_CLAIM_AMT_PAID	Amount Mortgage Insurance Company Paid On Claim	2	No commas(,) or dollar signs ($)
POOL_CLAIM_FILED_DATE	Date Claim Was Filed With Pool Insurance Company		MM/DD/YYYY
POOL_CLAIM_AMT	Amount of Claim Filed With Pool Insurance Company	2	No commas(,) or dollar signs ($)
POOL_CLAIM_PAID_DATE	Date Claim Was Settled and The Check Was Issued By The Pool Insurer		MM/DD/YYYY
POOL_CLAIM_AMT_PAID	Amount Paid On Claim By Pool Insurance Company	2	No commas(,) or dollar signs ($)
FHA_PART_A_CLAIM_FILED_DATE	Date FHA Part A Claim Was Filed With HUD		MM/DD/YYYY
FHA_PART_A_CLAIM_AMT	Amount of FHA Part A Claim Filed	2	No commas(,) or dollar signs ($)
FHA_PART_A_CLAIM_PAID_DATE	Date HUD Disbursed Part A Claim Payment		MM/DD/YYYY
FHA_PART_A_CLAIM_PAID_AMT	Amount HUD Paid on Part A Claim	2	No commas(,) or dollar signs ($)
FHA_PART_B_CLAIM_FILED_DATE	Date FHA Part B Claim Was Filed With HUD		MM/DD/YYYY
FHA_PART_B_CLAIM_AMT	Amount of FHA Part B Claim Filed	2	No commas(,) or dollar signs ($)
FHA_PART_B_CLAIM_PAID_DATE	Date HUD Disbursed Part B Claim Payment		MM/DD/YYYY
FHA_PART_B_CLAIM_PAID_AMT	Amount HUD Paid on Part B Claim	2	No commas(,) or dollar signs ($)
VA_CLAIM_FILED_DATE	Date VA Claim Was Filed With the Veterans Admin		MM/DD/YYYY
VA_CLAIM_PAID_DATE	Date Veterans Admin. Disbursed VA Claim Payment		MM/DD/YYYY
VA_CLAIM_PAID_AMT	Amount Veterans Admin. Paid on VA Claim	2	No commas(,) or dollar signs ($)

Standard File Codes – Delinquency Reporting

The Loss Mit Type field should show the approved Loss Mitigation Code as follows:

ASUM-

Approved Assumption

BAP-

Borrower Assistance Program

CO-

Charge Off

DIL-

Deed-in-Lieu

FFA-

Formal Forbearance Agreement

MOD-

Loan Modification

PRE-

Pre-Sale

SS-

Short Sale

MISC-

Anything else approved by the PMI or Pool Insurer

NOTE: Wells Fargo Bank will accept alternative Loss Mitigation Types to those above, provided that they are consistent with industry standards. If Loss Mitigation Types other than those above are used, the Servicer must supply Wells Fargo Bank with a description of each of the Loss Mitigation Types prior to sending the file.

The Occupant Code field should show the current status of the property code as follows:

Mortgagor

Tenant

Unknown

Vacant

The Property Condition field should show the last reported condition of the property as follows:

Damaged

Excellent

Fair

Gone

Good

Poor

Special Hazard

Unknown

Standard File Codes – Delinquency Reporting, Continued

The FNMA Delinquent Reason Code field should show the Reason for Delinquency as follows:

Delinquency Code	Delinquency Description
001	FNMA-Death of principal mortgagor
002	FNMA-Illness of principal mortgagor
003	FNMA-Illness of mortgagor’s family member
004	FNMA-Death of mortgagor’s family member
005	FNMA-Marital difficulties
006	FNMA-Curtailment of income
007	FNMA-Excessive Obligation
008	FNMA-Abandonment of property
009	FNMA-Distant employee transfer
011	FNMA-Property problem
012	FNMA-Inability to sell property
013	FNMA-Inability to rent property
014	FNMA-Military Service
015	FNMA-Other
016	FNMA-Unemployment
017	FNMA-Business failure
019	FNMA-Casualty loss
022	FNMA-Energy environment costs
023	FNMA-Servicing problems
026	FNMA-Payment adjustment
027	FNMA-Payment dispute
029	FNMA-Transfer of ownership pending
030	FNMA-Fraud
031	FNMA-Unable to contact borrower
INC	FNMA-Incarceration

Standard File Codes – Delinquency Reporting, Continued

The FNMA Delinquent Status Code field should show the Status of Default as follows:

Status Code	Status Description
09	Forbearance
17	Pre-foreclosure Sale Closing Plan Accepted
24	Government Seizure
26	Refinance
27	Assumption
28	Modification
29	Charge-Off
30	Third Party Sale
31	Probate
32	Military Indulgence
43	Foreclosure Started
44	Deed-in-Lieu Started
49	Assignment Completed
61	Second Lien Considerations
62	Veteran’s Affairs-No Bid
63	Veteran’s Affairs-Refund
64	Veteran’s Affairs-Buydown
65	Chapter 7 Bankruptcy
66	Chapter 11 Bankruptcy
67	Chapter 13 Bankruptcy

NOMURA ASSET ACCEPTANCE CORP 8-K