RECONSTITUTED SERVICING AGREEMENT

THIS RECONSTITUTED SERVICING AGREEMENT (this “Agreement”), entered into as of the 1st day of July, 2006, by and between LEHMAN BROTHERS HOLDINGS INC., a Delaware corporation (the “Seller” or “Lehman Brothers Holdings”), and GREENPOINT MORTGAGE FUNDING, INC., a New York corporation (the “Servicer”), having an office at 100 Wood Hollow Drive, Novato, California 94945, and acknowledged by AURORA LOAN SERVICES LLC, a Delaware limited liability company (“Aurora”), and U.S. BANK NATIONAL ASSOCIATION (the “Trustee”), recites and provides as follows:

RECITALS

WHEREAS, the Seller acquired certain conventional, residential, negative amortization, first lien mortgage loans (the “LBH Mortgage Loans”) from the Servicer, which LBH Mortgage Loans were either originated or acquired by the Servicer, pursuant to the Flow Mortgage Loan Purchase and Warranties Agreement, dated as of April 10, 2006 (the “LBH Purchase Agreement”), by and between the Seller and the Servicer, which LBH Purchase Agreement is annexed as Exhibit B hereto.

WHEREAS, Lehman Brothers Bank, FSB (the “Bank”) acquired certain conventional, residential, negative amortization, first lien mortgage loans (the “Bank Mortgage Loans” as identified on Exhibit E and together with the LBH Mortgage Loans, the “Mortgage Loans”) from the Servicer, which Bank Mortgage Loans were either originated or acquired by the Servicer pursuant to the Flow Mortgage Loan Purchase and Warranties Agreement, dated as of December 12, 2001, amended as of March 14, 2003 and further amended by the Amendment Reg AB (the “Amendment Reg AB”) dated as of November 23, 2005 (the “Bank Purchase Agreement”), by and between the Bank and the Servicer, which Bank Purchase Agreement is annexed as Exhibit B hereto.

WHEREAS, pursuant to an Assignment and Assumption Agreement, dated July 1, 2006 (the “Assignment and Assumption Agreement”) annexed as Exhibit H hereto, the Seller acquired from the Bank all of the Bank’s right, title and interest in and to the Bank Mortgage Loans and assumed for the benefit of the Servicer and the Bank the rights and obligations of the Bank as owner of such Bank Mortgage Loans pursuant to the Bank Purchase Agreement.

WHEREAS, the Mortgage Loans are currently serviced pursuant to the Flow Interim Servicing Agreement, dated as of April 10, 2006 (the “Flow Agreement”), by and between the Seller and the Servicer, which Flow Agreement is attached hereto as Exhibit C and is reconstituted hereby.

WHEREAS, the Seller has conveyed the Mortgage Loans to Structured Asset Securities Corporation, a Delaware special purpose corporation (“SASCO”), which in turn has conveyed the Mortgage Loans to U.S. Bank National Association, as trustee (the “Trustee”), pursuant to a trust agreement dated as of July 1, 2006 (the “Trust Agreement”), among the Trustee, Aurora Loan Services LLC, as master servicer (“Aurora,” and, together with any successor master servicer appointed pursuant to the provisions of the Trust Agreement, the “Master Servicer”), and SASCO.

WHEREAS, the Seller desires that the Servicer continue to service the Mortgage Loans, and the Servicer has agreed to do so, subject to the rights of the Seller (with the consent of the Master Servicer) to terminate the rights and obligations of the Servicer hereunder at any time without cause and to the other conditions set forth herein.

WHEREAS, the Seller and the Servicer agree that the provisions of the Flow Agreement shall continue to apply to the Mortgage Loans, but only to the extent provided herein and that this Agreement shall govern the Mortgage Loans for so long as such Mortgage Loans remain subject to the provisions of the Trust Agreement and until the Transfer Date.

WHEREAS, the Seller and Servicer agree that on the Transfer Date the Servicer shall no longer service the Mortgage Loans and shall transfer servicing of the Mortgage Loans to the successor servicer designated by the Seller herein.

WHEREAS, the Master Servicer and any successor master servicer shall be obligated, among other things, to supervise the servicing of the Mortgage Loans on behalf of the Trustee, and shall have the right under the conditions specified herein to terminate for cause the rights and obligations of the Servicer under this Agreement.

WHEREAS, the Seller and the Servicer intend that each of the Master Servicer and the Trustee is an intended third party beneficiary of this Agreement.

NOW, THEREFORE, in consideration of the mutual agreements hereinafter set forth and for other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the Seller and the Servicer hereby agree as follows:

AGREEMENT

1. Definitions. Capitalized terms used and not defined in this Agreement, including Exhibit A hereto and any provisions of the Flow Agreement incorporated by reference herein (regardless of whether such terms are defined in the Flow Agreement or Purchase Agreements), shall have the meanings ascribed to such terms in the Trust Agreement.

2. Custodianship. The parties hereto acknowledge that U.S. Bank Trust, National Association will act as custodian of the Serviced Mortgage Files for the Trustee pursuant to a Custodial Agreement, dated July 1, 2006, between U.S. Bank National Association and the Trustee.

3. Servicing Transfer Date. The Servicer agrees, with respect to the Mortgage Loans, to perform and observe the duties, responsibilities and obligations that are to be performed and observed under the provisions of the Flow Agreement, except as otherwise provided herein and on Exhibit A hereto, and that the provisions of the Flow Agreement, as so modified, are and shall be a part of this Agreement to the same extent as if set forth herein in full. On the Transfer Date (i.e., the date selected by mutual agreement of the parties for the transfer of the servicing of the Mortgage Loans), the Servicer shall transfer all servicing of the Mortgage Loans in accordance with the Flow Agreement and the Purchase Agreements to the successor servicer designated by the Seller.

4. Trust Cut-off Date. The parties hereto acknowledge that by operation of Section 2.05 and Section 3.01 of the Flow Agreement, the remittance on July 10, 2006 to the Trust Fund is to include principal due after July 1, 2006 (the “Trust Cut-off Date”) plus interest, at the Mortgage Loan Remittance Rate collected during the related Due Period exclusive of any portion thereof allocable to a period prior to the Trust Cut-off Date, with the adjustments specified in clause (b) of Section 3.01 of the Flow Agreement.

5. Master Servicing; Termination of Servicer. The Servicer, including any successor servicer hereunder, shall be subject to the supervision of the Master Servicer, which Master Servicer shall be obligated to ensure that the Servicer services the Mortgage Loans in accordance with the provisions of this Agreement. The Master Servicer, acting on behalf of the Trustee and the LXS 2006-GP4 Trust Fund (the “Trust Fund”) created pursuant to the Trust Agreement, shall have the same rights as the Seller under the Flow Agreement to enforce the obligations of the Servicer under the Flow Agreement and the term “Purchaser” as used in the Flow Agreement in connection with any rights of the Purchaser shall refer to the Trust Fund or, as the context requires, the Master Servicer acting in its capacity as agent for the Trust Fund, except as otherwise specified in Exhibit A hereto. The Master Servicer shall be entitled to terminate the rights and obligations of the Servicer under this Agreement upon the failure of the Servicer to perform any of its obligations under this Agreement, which failure results in an Event of Default as provided in Article XI of the Flow Agreement. Notwithstanding anything herein to the contrary, in no event shall the Master Servicer assume any of the obligations of the Seller under the Flow Agreement and, in connection with the performance of the Master Servicer’s duties hereunder, the parties and other signatories hereto agree that the Master Servicer shall be entitled to all of the rights, protections and limitations of liability afforded to the Master Servicer under the Trust Agreement.

-2-

6. No Representations. Neither the Servicer nor the Master Servicer shall be obligated or required to make any representations and warranties regarding the characteristics of the Mortgage Loans in connection with the transactions contemplated by the Trust Agreement and issuance of the Certificates issued pursuant thereto.

7. Notices. All notices and communications between or among the parties hereto (including any third party beneficiary thereof) or required to be provided to the Trustee shall be in writing and shall be deemed received or given when mailed first-class mail, postage prepaid, addressed to each other party at its address specified below or, if sent by facsimile or electronic mail, when facsimile or electronic confirmation of receipt by the recipient is received by the sender of such notice. Each party may designate to the other parties in writing, from time to time, other addresses to which notices and communications hereunder shall be sent.

All notices required to be delivered to the Master Servicer under this Agreement shall be delivered to the Master Servicer at the following address:

Aurora Loan Services LLC

10350 Park Meadows Drive

Littleton, Colorado 80124

Mail Stop Code - 3195

Attn: Jerald W. Dreyer - Master Servicing

LXS 2006-GP4

Tel: 720-945-3422

All remittances required to be made to the Master Servicer under this Agreement shall be made on an actual/actual basis to the following wire account:

JPMorgan Chase Bank, N.A.

New York, New York

ABA#: 021-000-021

Account Name:

Aurora Loan Services LLC,

Master Servicing Payment Clearing Account

Account Number: 066-611059

Beneficiary: Aurora Loan Services LLC

For further credit to: LXS 2006-GP4

-3-

All notices required to be delivered to the Trustee hereunder shall be delivered to the Trustee at the following address:

U.S. Bank National Association

1 Federal Street

Boston, M.A. 02110

Attention: Corporate Trust Services

Telephone: (617) 603-6413

Telecopier: (617) 603-6638

All notices required to be delivered to the Seller hereunder shall be delivered to the Seller at the following address:

Lehman Brothers Holdings Inc.

745 Seventh Avenue, 6th Floor

New York, New York 10019

Attention: Leslee Gelber

Telephone: (212) 526-5861

E-mail: lgelber@lehman.com

With a copy to:

Dechert, LLP

Cira Centre

2929 Arch Street

Philadelphia, PA 19104-2808

Attention: Steven J. Molitor, Esq.

All notices required to be delivered to the Servicer hereunder shall be delivered to the address of its office as set forth in the first paragraph of this Agreement.

8. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, NOTWITHSTANDING NEW YORK OR OTHER CHOICE OF LAW RULES TO THE CONTRARY.

9. Counterparts. This Agreement may be executed in any number of counterparts, each of which when so executed shall be deemed to be an original, but all of which counterparts shall together constitute but one and the same instrument.

10. NIMS Insurer. In addition to the terms and conditions set forth in this Agreement, any and all rights of the Master Servicer and Trustee to receive notices from the Servicer pursuant to this Agreement shall hereby be equally granted to the NIMS Insurer. The Master Servicer or the Trustee shall notify the Servicer in writing of the name and address of the NIMS insurer and the name and telephone number of the appropriate contact employee of the NIMS Insurer. For any and all obligations of the Servicer to obtain consent from the Master Servicer and the Trustee pursuant to this Agreement, the Servicer must also obtain such consent from the NIMS Insurer. Notwithstanding any other provision in this Agreement, the Trust Fund shall hold harmless and indemnify the Servicer for any failure of the NIMS Insurer to comply with the provisions of this Agreement. Notwithstanding any provision herein to the contrary, the parties to this Agreement agree that it is appropriate, in furtherance of the intent of such parties as set forth herein, that the NIMS Insurer receive the benefit of the provisions of this Agreement as an intended third party beneficiary of this Agreement to the extent of such provisions. The Servicer shall have the same obligations to the NIMS Insurer as if it was a party to this Agreement, and the NIMS Insurer shall have the same rights and remedies to enforce the provisions of this Agreement as if it was a party to this Agreement. The parties hereto agree to cooperate in good faith to amend this Agreement in accordance with the terms hereof to include such other provisions as may be reasonably requested by the NIMS Insurer. Notwithstanding the foregoing, all rights of the NIMS Insurer set forth in this Agreement shall exist only so long as the NIM Securities issued pursuant to the NIMS Transaction remain outstanding or the NIMS Insurer is owed amounts in respect of its guarantee of payment on such NIM Securities.

-4-

NIM Security shall mean any net interest margin security issued by an owner trust or special purpose entity that is holding all rights, title and interest in and to the Class X Certificates issued by the Trust Fund.

NIMS Insurer shall mean collectively, any insurance companies issuing a financial guaranty insurance policy covering certain payments to be made on NIM Securities pursuant to a NIMS Transaction.

NIMS Transaction shall mean any transaction in which NIM Securities are secured, in part, by the payments on the Class X Certificates issued by the Trust Fund.

11. Distressed Mortgage Loans. The NIMS Insurer may, at its option, purchase a Distressed Mortgage Loan. Any such purchase shall be accomplished by: (A) remittance to the Master Servicer of the Purchase Price (as defined in the Trust Agreement) for the Distressed Mortgage Loan for deposit into the Collection Account established by the Master Servicer pursuant to the Trust Agreement, and (B) the NIMS Insurer’s (i) acknowledgment and agreement to retain Servicer, as the servicer for any such purchased Distressed Mortgage Loan, to service such Distressed Mortgage Loan pursuant to the provisions of the Flow Agreement, and (ii) assumption, for the benefit of the Servicer, the rights and obligations of the Trust Fund as owner of such purchased Distressed Mortgage Loans pursuant to the Flow Agreement. The Trustee and the Servicer shall immediately effectuate the conveyance of the purchased Distressed Mortgage Loans to the NIMS Insurer exercising the purchase option, including prompt delivery of the Servicing File and all related documentation to the applicable NIMS Insurer. A Distressed Mortgage Loan is as of any Determination Date a Mortgage Loan that is delinquent in payment for a period of ninety (90) days or more, without giving effect to any grace period permitted by the related Mortgage Loan, or for which the Servicer or Trustee has accepted a deed in lieu of foreclosure.

[SIGNATURE PAGES IMMEDIATELY FOLLOW]

-5-

Executed as of the day and year first above written.

	LEHMAN BROTHERS HOLDINGS INC., as Seller


	By: Name: Ellen Kiernan Title: Authorized Signatory


	GREENPOINT MORTGAGE FUNDING, INC., as Servicer


	By: Name: Title:


Acknowledged:

AURORA LOAN SERVICES LLC, as Master Servicer

By: Name: Jerald W. Dreyer Title: Vice President


U.S. BANK NATIONAL ASSOCIATION as Trustee

By: Name: Title: Vice President

EXHIBIT A

Modifications to the Flow Agreement

Unless otherwise specified herein, any provisions of the Flow Agreement, including definitions, relating to (i) representations and warranties relating to the Mortgage Loans and not relating to the servicing of the Mortgage Loans, (ii) Mortgage Loan repurchase obligations, (iii) Whole Loan and Pass-Through Transfers and Reconstitution, and (iv) Assignments of Mortgage, shall be disregarded for purposes relating to this Agreement.

New definitions of “Best Efforts” and “Closing Date” are hereby added to Article I to immediately follow the definition of “Agreement”, to read as follows:

Best Efforts: Efforts determined to be reasonably diligent by the Seller in its sole discretion. Such efforts do not require the Seller to enter into any litigation, arbitration or other legal or quasi-legal proceeding, nor do they require the Seller to advance or expend fees or sums of money in addition to those specifically set forth in this Agreement.

Closing Date: July 31, 2006.

New definitions of “Determination Date”, “Due Date” and “Due Period” are hereby added to Article I to immediately follow the definition of “Custodial Account,” to read as follows:

Determination Date: The last day of the calendar month preceding the related Remittance Date (or if such day is not a Business Day, the Business Day immediately preceding such day).

Due Date: The day of the month on which the scheduled monthly payment is due on a Mortgage Loan, exclusive of any days of grace. With respect to the Mortgage Loans for which payment from the Mortgagor is due on a day other than the first day of the month, such Mortgage Loans will be treated as if the monthly payment is due on the first day of the immediately succeeding month.

Due Period: With respect to each Remittance Date, the calendar month immediately preceding the month of the Remittance Date.

The definition of “Eligible Investments” in Article I is hereby amended and restated in its entirety to read as follows:

Eligible Investments: Any one or more of the obligations and securities listed below which investment provides for a date of maturity not later than the Determination Date in each month:

(i) direct obligations of, and obligations fully guaranteed as to timely payment of principal and interest by, the United States of America or any agency or instrumentality of the United States of America the obligations of which are backed by the full faith and credit of the United States of America (“Direct Obligations”);

A-1

(ii) federal funds, or demand and time deposits in, certificates of deposits of, or bankers’ acceptances issued by, any depository institution or trust company (including U.S. subsidiaries of foreign depositories and the Trustee or any agent of the Trustee, acting in its respective commercial capacity) incorporated or organized under the laws of the United States of America or any state thereof and subject to supervision and examination by federal or state banking authorities, so long as at the time of investment or the contractual commitment providing for such investment the commercial paper or other short-term debt obligations of such depository institution or trust company (or, in the case of a depository institution or trust company which is the principal subsidiary of a holding company, the commercial paper or other short-term debt or deposit obligations of such holding company or deposit institution, as the case may be) have been rated by each Rating Agency in its highest short-term rating category or one of its two highest long-term rating categories;

(iii) repurchase agreements collateralized by Direct Obligations or securities guaranteed by Ginnie Mae, Fannie Mae or Freddie Mac with any registered broker/dealer subject to Securities Investors’ Protection Corporation jurisdiction or any commercial bank insured by the FDIC, if such broker/dealer or bank has an uninsured, unsecured and unguaranteed obligation rated by each Rating Agency in its highest short-term rating category;

(iv) securities bearing interest or sold at a discount issued by any corporation incorporated under the laws of the United States of America or any state thereof which have a credit rating from each Rating Agency, at the time of investment or the contractual commitment providing for such investment, at least equal to one of the two highest long-term credit rating categories of each Rating Agency; provided, however, that securities issued by any particular corporation will not be Eligible Investments to the extent that investment therein will cause the then outstanding principal amount of securities issued by such corporation and held as part of the Trust Fund to exceed 20% of the sum of the aggregate principal balance of the Mortgage Loans; provided, further, that such securities will not be Eligible Investments if they are published as being under review with negative implications from any Rating Agency;

(v) commercial paper (including both non-interest-bearing discount obligations and interest-bearing obligations payable on demand or on a specified date not more than 180 days after the date of issuance thereof) rated by each Rating Agency in its highest short-term rating category;

(vi) a Qualified GIC;

(vii) certificates or receipts representing direct ownership interests in future interest or principal payments on obligations of the United States of America or its agencies or instrumentalities (which obligations are backed by the full faith and credit of the United States of America) held by a custodian in safekeeping on behalf of the holders of such receipts; and

(viii) any other demand, money market, common trust fund or time deposit or obligation, or interest-bearing or other security or investment, (A) rated in the highest rating category by each Rating Agency or (B) that would not adversely affect the then current rating by each Rating Agency of any of the Certificates and has a short term rating of at least “A-1” or its equivalent by each Rating Agency. Such investments in this subsection (viii) may include money market mutual funds or common trust funds, including any fund for which the Trustee, the Master Servicer or an affiliate thereof serves as an investment advisor, administrator, shareholder servicing agent, and/or custodian or subcustodian, notwithstanding that (x) the Trustee, the Master Servicer or an affiliate thereof charges and collects fees and expenses from such funds for services rendered, (y) the Trustee, the Master Servicer or an affiliate thereof charges and collects fees and expenses for services rendered pursuant to this Agreement, and (z) services performed for such funds and pursuant to this Agreement may converge at any time; provided, however, that no such instrument shall be an Eligible Investment if such instrument evidences either (i) a right to receive only interest payments with respect to the obligations underlying such instrument, or (ii) both principal and interest payments derived from obligations underlying such instrument and the principal and interest payments with respect to such instrument provide a yield to maturity of greater than 120% of the yield to maturity at par of such underlying obligations.

A-2

A definition of “Ginnie Mae” is hereby added to Article I to immediately follow the definition of “Fidelity Bond,” to read as follows:

Ginnie Mae: The Government National Mortgage Association, or any successor thereto.

A definition of “Monthly Advance” is hereby added to Article I to immediately follow the definition of “Master Servicer,” to read as follows:

Monthly Advance: The portion of a Monthly Payment delinquent with respect to each Mortgage Loan at the close of business on the related Determination Date.

A new definition of “Mortgage Loan” is hereby added to Article I to immediately follow the definition of “Mortgage Impairment Insurance Policy,” to read as follows:

Mortgage Loan: An individual Mortgage Loan which has been purchased from the Servicer by Lehman Brothers Bank, FSB and is subject to this Agreement being identified on the Mortgage Loan Schedule to this Agreement, which Mortgage Loan includes without limitation the Mortgage Loan documents, the monthly reports, Principal Prepayments, Liquidation Proceeds, Condemnation Proceeds, Insurance Proceeds, REO Disposition Proceeds and all other rights, benefits, proceeds and obligations arising from or in connection with such Mortgage Loan.

A new definition of “Mortgage Loan Schedule” is hereby added to Article I to immediately follow the definition of “Mortgage Loan Remittance Rate,” to read as follows:

Mortgage Loan Schedule: The schedule of Mortgage Loans attached as Exhibit D to this Agreement setting forth certain information with respect to the Mortgage Loans purchased from the Seller by Lehman Brothers Bank, FSB or by Lehman Brothers Holdings Inc. pursuant to either of the Purchase Agreements.

A new definition of “Prepayment Period” is hereby added to Article I to immediately follow the definition of “PMI Policy,” to read as follows:

Prepayment Period: The calendar month immediately preceding the month in which such Distribution Date occurs.

A-3

10.

A new definition of “Principal Prepayment” is hereby added to Article I to immediately follow the definition of “Prime Rate”, to read as follows:

Principal Prepayment: Any payment or other recovery of principal on a Mortgage Loan which is received in advance of its scheduled Due Date, including any prepayment charge or premium thereon and which is not accompanied by an amount of interest representing scheduled interest due on any date or dates in any month or months subsequent to the month of prepayment.”

11.

The definition of “Purchase Agreement” is hereby amended and restated in its entirety to read as follows:

Purchase Agreement: As applicable, either of (i) the Flow Mortgage Loan Purchase and Warranties Agreement between the Purchaser and the Seller or (ii) the Flow Mortgage Loan Purchase and Warranties Agreement between Lehman Brothers Holdings Inc. and the Seller related to the purchase of the Mortgage Loans dated as of the related Cut-off Date.

12.

The definition of “Qualified Depository” is hereby amended and restated in its entirety to read as follows:

Qualified Depository: Any of (i) a federal or state-chartered depository institution the accounts of which are insured by the FDIC and whose commercial paper, short-term debt obligations or other short-term deposits are rated at least “A-1+” by Standard & Poor’s if the deposits are to be held in the account for less than 30 days, or whose long-term unsecured debt obligations are rated at least “AA-” by Standard & Poor’s if the deposits are to be held in the account for more than 30 days, or (ii) the corporate trust department of a federal or state-chartered depository institution subject to regulations regarding fiduciary funds on deposit similar to Title 12 of the Code of Federal Regulations Section 9.10(b), which, in either case, has corporate trust powers, acting in its fiduciary capacity, or (iii) Lehman Brothers Bank, F.S.B., a federal savings bank.

13.

A new definition of “Qualified GIC” is hereby added to Article I to immediately follow the definition of “Qualified Depository”, to read as follows:

Qualified GIC: A guaranteed investment contract or surety bond providing for the investment of funds in the Custodial Account and insuring a minimum, fixed or floating rate of return on investments of such funds, which contract or surety bond shall:

(a) be an obligation of an insurance company or other corporation whose long-term debt is rated by each Rating Agency in one of its two highest rating categories or, if such insurance company has no long-term debt, whose claims paying ability is rated by each Rating Agency in one of its two highest rating categories, and whose short-term debt is rated by each Rating Agency in its highest rating category;

(b) provide that the Servicer may exercise all of the rights under such contract or surety bond without the necessity of taking any action by any other Person;

(c) provide that if at any time the then current credit standing of the obligor under such guaranteed investment contract is such that continued investment pursuant to such contract of funds would result in a downgrading of any rating of the Servicer, the Servicer shall terminate such contract without penalty and be entitled to the return of all funds previously invested thereunder, together with accrued interest thereon at the interest rate provided under such contract to the date of delivery of such funds to the Trustee;

A-4

(d) provide that the Servicer’s interest therein shall be transferable to any successor Servicer or the Master Servicer hereunder; and

(e) provide that the funds reinvested thereunder and accrued interest thereon be returnable to the Custodial Account, as the case may be, not later than the Business Day prior to any Determination Date.

14.

A new definition of “Rating Agency” is hereby added to Article I to immediately follow the definition of “Qualified Insurer”, to read as follows:

Rating Agency: Moody’s Investors Service, Inc., Fitch, Inc. or Standard & Poor’s, a division of the McGraw-Hill Companies, Inc., or any successor of the foregoing.

15.

The definition of “Servicing Fee” in Article I is hereby amended and restated in its entirety to read as follows:

Servicing Fee: With respect to each Mortgage Loan, an amount equal to $11.00 per month. Such fee shall be payable monthly and shall be pro rated for any portion of a month during which such Mortgage Loan is serviced pursuant to this Agreement. The obligation of the Purchaser to pay the Servicing Fee is limited to, and the Servicing Fee is payable solely from, the interest portion (including recoveries with respect to interest from Liquidation Proceeds, to the extent permitted by Section 2.05) of such Monthly Payment collected by the Seller, or as otherwise provided under Section 2.05.

16.

Section 2.01 (Seller to Act as Servicer) is hereby amended as follows:

(i) by deleting the first sentence of the second paragraph of such section and replacing it with the following:

Consistent with the terms of this Agreement, the Seller may waive, modify or vary any term of any Mortgage Loan or consent to the postponement of any such term or in any manner grant indulgence to any Mortgagor if in the Seller’s reasonable and prudent determination such waiver, modification, postponement or indulgence is not materially adverse to the Purchaser, provided, however, that unless the Mortgagor is in default with respect to the Mortgage Loan or such default is, in the judgment of the Seller, imminent, the Seller shall not permit any modification with respect to any Mortgage Loan that would change the Mortgage Interest Rate, forgive the payment of principal or interest, reduce or increase the outstanding principal balance (except for actual payments of principal) or change the final maturity date on such Mortgage Loan.

(ii) by adding the following to the end of the second paragraph of such section:

Promptly after the execution of any assumption, modification, consolidation or extension of any Mortgage Loan, the Servicer shall forward to the Master Servicer copies of any documents evidencing such assumption, modification, consolidation or extension. Notwithstanding anything to the contrary contained in the Flow Agreement, the Servicer shall not make or permit any modification, waiver or amendment of any term of any Mortgage Loan that would cause any REMIC created under the Trust Agreement to fail to qualify as a REMIC or result in the imposition of any tax under Section 860F(a) or Section 860G(d) of the Code.

A-5

17.

Section 2.03 (Collection of Mortgage Loan Payments) is hereby amended by replacing the words “Continuously from the related Cut-off Date until the related Transfer Date” in the first line thereof with “Continuously from the Closing Date until the date the Mortgage Loan ceases to be subject to this Agreement.”

18. Section 2.04 (Establishment of and Deposits to Custodial Account) is hereby amended by:

(i) in the first paragraph, replacing the words “Lehman Capital, A Division of Lehman Brothers Holdings Inc., Residential Fixed and Adjustable Rate Mortgage Loans, Group No 2006-FLOW and various Mortgagors” with the words “U.S. Bank National Association, as Trustee for the LXS 2006-GP4 Trust Fund”;

(ii) replacing the sentence at the end of the first paragraph with the following: “A copy of such certification or letter agreement shall also be furnished to the Master Servicer within thirty (30) days of the Closing Date.”; and

(iii) adding the words “including all Principal Prepayments” at the end of clause (i) to such Section.

19.

Section 2.05 (Permitted Withdrawals From Custodial Account) is hereby amended by deleting the word “and” at the end of clause (v), by replacing the period at the end of clause (vi) with a semicolon and by adding the following new clauses (vii) and (viii):

(vii) to invest funds in the Custodial Account in Eligible Investments in accordance with Section 2.10; and

(viii) to transfer funds to another Qualified Depository in accordance with Section 2.10 hereof.

20.

Section 2.06 (Establishment of and Deposits to Escrow Account) is hereby amended by:

(i) in the first paragraph, replacing the words replacing the words “Lehman Capital, A Division of Lehman Brothers Holdings Inc. Residential Fixed and Adjustable Rate Mortgage Loans, Group No 2006-FLOW, and various Mortgagors” with the words “U.S. Bank National Association, as Trustee for the LXS 2006-GP4 Trust Fund”; and

(ii) replacing the sentence at the end of the first paragraph with the following: “A copy of such certification shall also be furnished to the Master Servicer within thirty (30) days of the Closing Date.”

21.

Section 2.17 (Title, Management and Disposition of REO Property) is hereby amended by:

(i) adding the following paragraph as the third paragraph of such Section:

Notwithstanding anything to the contrary contained in this Section 2.17, in connection with a foreclosure or acceptance of a deed in lieu of foreclosure, in the event the Seller has reasonable cause to believe that a Mortgaged Property is contaminated by hazardous or toxic substances or wastes, or if the Trustee or the Master Servicer otherwise requests, an environmental inspection or review of such Mortgaged Property to be conducted by a qualified inspector shall be arranged by the Seller. Upon completion of the inspection, the Seller shall provide the Trustee and the Master Servicer with a written report of such environmental inspection. In the event that the environmental inspection report indicates that the Mortgaged Property is contaminated by hazardous or toxic substances or wastes, the Seller shall not proceed with foreclosure or acceptance of a deed in lieu of foreclosure. In the event that the environmental inspection report is inconclusive as to the whether or not the Mortgaged Property is contaminated by hazardous or toxic substances or wastes, the Seller shall not, without the prior approval of the Trustee, proceed with foreclosure or acceptance of a deed in lieu of foreclosure. In such instance, the Trustee shall be deemed to have approved such foreclosure or acceptance of a deed in lieu of foreclosure unless the Trustee notifies the Seller in writing, within two (2) Business Days after its receipt of written notice of the proposed foreclosure or deed in lieu of foreclosure from the Seller, that it disapproves of the related foreclosure or acceptance of a deed in lieu of foreclosure. The Seller shall be reimbursed for all Servicing Advances made pursuant to this paragraph with respect to the related Mortgaged Property from the Custodial Account.

A-6

(ii) by replacing the existing third paragraph of such section (before the amendment made by (i) above) by the following paragraph:

The Seller shall use its Best Efforts to dispose of the REO Property as soon as possible and shall sell such REO Property in any event within three years after title has been taken to such REO Property, unless (a) a REMIC election has not been made with respect to the arrangement under which the Mortgage Loans and the REO Property are held, and (b) the Seller determines, and gives an appropriate notice to the Master Servicer to such effect, that a longer period is necessary for the orderly liquidation of such REO Property. If a period longer than three years is permitted under the foregoing sentence and is necessary to sell any REO Property, (i) the Seller shall report monthly to the Master Servicer as to the progress being made in selling such REO Property and (ii) if, with the written consent of the Trustee, a purchase money mortgage is taken in connection with such sale, such purchase money mortgage shall name the Seller as mortgagee, and such purchase money mortgage shall not be held pursuant to this Agreement, but instead a separate participation agreement among the Seller and Trustee shall be entered into with respect to such purchase money mortgage. Notwithstanding anything herein to the contrary, the Seller shall not be required to provide financing for the sale of any REO Property. Notwithstanding any other provisions of this Agreement, no REO Property acquired by the Trust Fund shall be rented (or allowed to continue to be rented) or otherwise used or held by or on behalf of the Trust Fund in such a manner, pursuant to any terms or for a period that would: (i) cause such REO Property to fail to qualify as “foreclosure property” within the meaning of Section 860G(a)(8) of the Code or (ii) result in the imposition of any tax upon any REMIC included in the Trust Fund.

(iii) by adding the following paragraph to the end of such section:

Prior to acceptance by the Seller of an offer to sell any REO Property, the Seller shall notify the Master Servicer of such offer in writing which notification shall set forth all material terms of said offer (each a “Notice of Sale”). The Master Servicer shall be deemed to have approved the sale of any REO Property unless the Master Servicer notifies the Seller in writing, within five (5) days after its receipt of the related Notice of Sale, that it disapproves of the related sale, in which case the Seller shall not proceed with such sale.

A-7

22.

Section 3.01 (Remittances) is hereby amended and restated in its entirety to read as follows:

On each Remittance Date the Seller shall remit on an actual/actual basis by wire transfer of immediately available funds to the Master Servicer (a) all amounts deposited in the Custodial Account as of the close of business on the last day of the related Due Period (net of charges against or withdrawals from the Custodial Account pursuant to Sections 2.04 and 2.05), plus (b) all Monthly Advances, if any, which the Seller is obligated to make pursuant to Section 3.03, and minus (c) any amounts attributable to Principal Prepayments, Liquidation Proceeds, Insurance Proceeds, Condemnation Proceeds or REO Disposition Proceeds received after the applicable Prepayment Period, which amounts shall be remitted on the following Remittance Date, together with any additional interest required to be deposited in the Custodial Account in connection with such Principal Prepayment in accordance with Section 2.04(xi).

With respect to any remittance received by the Master Servicer after the Business Day on which such payment was due, the Seller shall pay to the Master Servicer interest on any such late payment at an annual rate equal to the Prime Rate, adjusted as of the date of each change, plus two (2) percentage points, but in no event greater than the maximum amount permitted by applicable law. Such interest shall be deposited in the Custodial Account by the Seller on the date such late payment is made and shall cover the period commencing with the day following such Business Day and ending with the Business Day on which such payment is made, both inclusive. Such interest shall be remitted along with the distribution payable on the next succeeding Remittance Date. The payment by the Seller of any such interest shall not be deemed an extension of time for payment or a waiver of any Event of Default by the Seller.

All remittances required to be made to the Master Servicer shall be made to the following wire account or to such other account as may be specified by the Master Servicer from time to time:

JPMorgan Chase Bank, N.A.

New York, New York

ABA#: 021-000-021

Account Name: Aurora Loan Services LLC,

Master Servicing Payment Clearing Account

Account Number: 066-611059

Beneficiary: Aurora Loan Services LLC

For further credit to: LXS 2006-GP4

23.

Section 3.02 (Statements to Purchaser) is hereby amended as follows:

(i) by replacing the first paragraph of such Section in its entirety by the following paragraph:

Not later than the fifth Business Day of each month, the Seller shall furnish to the Master Servicer (a) a monthly remittance advice in the format set forth in Exhibit E-1 hereto and a monthly defaulted loan report in the format set forth in Exhibit E-2 hereto (or in such other format mutually agreed between the Seller and the Master Servicer) as to the accompanying remittance and the period ending on the last day of the preceding Determination Date and (b) all such information required pursuant to clause (a) above on a magnetic tape or other similar media reasonably acceptable to the Master Servicer.

A-8

(ii) by replacing the last paragraph of Section 3.02(a) in its entirety with the following paragraph:

Beginning with calendar year 2007, the Seller shall prepare and file any and all tax returns, information statements or other filings for the portion of the tax year 2006 and the portion of subsequent tax years for which the Seller has serviced some or all of the Mortgage Loans hereunder as such returns, information statements or other filings are required to be delivered to any governmental taxing authority or to the Master Servicer pursuant to any applicable law with respect to the Mortgage Loans and the transactions contemplated hereby. In addition, the Seller shall provide the Trustee with such information concerning the Mortgage Loans as is necessary for the Trustee to prepare the Trust Fund’s federal income tax return as the Trustee may reasonably request from time to time.

(iii) by amending Section 3.02(b)(i)(B) to read as follows: “a description of any affiliation or relationship between the Servicer, each Subservicer and any of the parties listed on Exhibit G hereto.”

(iv) by adding the following paragraphs to the end of Section 3.02(b):

The Seller shall promptly notify the Trustee, the NIMS Insurer, the Master Servicer and the Depositor (i) of any legal proceedings pending against the Seller of the type described in Item 1117 (§ 229.1117) of Regulation AB and (ii) if the Seller shall become (but only to the extent not previously disclosed to the NIMS Insurer, the Master Servicer and the Depositor) at any time an affiliate of any of the parties listed on Exhibit F to this Agreement.

The Seller shall provide to the Trustee, the NIMS Insurer, the Master Servicer and the Depositor prompt notice of the occurrence of any of the following: any event of default under the terms of this Agreement, any merger, consolidation or sale of substantially all of the assets of the Seller, any material litigation involving the Seller, and any affiliation or other significant relationship between the Seller and other transaction parties.

Not later than the tenth calendar day of each month (or if such calendar day is not a Business Day, the immediately preceding Business Day), the Seller shall provide to the Trustee, the NIMS Insurer, the Master Servicer and the Depositor notice of the occurrence of any material modifications, extensions or waivers of terms, fees, penalties or payments relating to the Mortgage Loans during the related Due Period or that have cumulatively become material over time (Item 1121(a)(11) of Regulation AB) along with all information, data, and materials related thereto as may be required to be included in the related Distribution Report on Form 10-D.

24.

Section 3.03 (Principal and Interest Advances by Seller) is hereby deleted and replaced in its entirety by the following paragraph:

Section 3.03 Monthly Advances by Seller.

The Servicer shall not be required to make Monthly Advances.

A-9

25.

The last sentence of Section 4.05(i)(A) is hereby amended to read as follows:

Such report shall be addressed to the Purchaser, the Master Servicer and such Depositor and signed by an authorized officer of the Servicer, and shall address each of the Servicing Criteria specified on Exhibit 8 hereto;

26.

The parties hereto acknowledge that Section 5.01 (Provision of Information) and Section 5.02 (Financial Statements; Servicing Facilities) are inapplicable to this Agreement.

27.

Sections 8.01 (Indemnification) and 8.02 (Limitation on Liability of Seller and Others) are replaced by the following:

The Seller shall indemnify the Trust Fund, the Trustee and the Master Servicer and hold each of them harmless against any and all claims, losses, damages, penalties, fines, forfeitures, reasonable and necessary legal fees and related costs, judgments, and any other costs, fees and expenses that any of such parties may sustain in any way related to the failure of the Seller to perform its duties and service the Mortgage Loans in strict compliance with the terms of this Agreement. The Seller immediately shall notify Lehman Brothers Bank, FSB, the Master Servicer and the Trustee or any other relevant party if a claim is made by a third party with respect to this Agreement or the Mortgage Loans, assume (with the prior written consent of the indemnified party) the defense of any such claim and pay all expenses in connection therewith, including counsel fees, and promptly pay, discharge and satisfy any judgment or decree which may be entered against it or any of such parties in respect of such claim. The Seller shall follow any written instructions received from the Trustee in connection with such claim. The Trustee, from the assets of the Trust Fund, promptly shall reimburse the Seller for all amounts advanced by it pursuant to the preceding sentence except when the claim is in any way relates to the failure of the Seller to service and administer the Mortgage Loans in strict compliance with the terms of this Agreement.

The Trust Fund shall indemnify the Seller and hold it harmless against any and all claims, losses, damages, penalties, fines, forfeitures, reasonable and necessary legal fees and related costs, judgments, and any other costs, fees and expenses that the Seller may sustain in any way related to the failure of the Trustee or the Master Servicer to perform its duties in compliance with the terms of this Agreement.

In the event a dispute arises between an indemnified party and the Seller with respect to any of the rights and obligations of the parties pursuant to this Agreement and such dispute is adjudicated in a court of law, by an arbitration panel or any other judicial process, then the losing party shall indemnify and reimburse the winning party for all attorney’s fees and other costs and expenses related to the adjudication of said dispute.

28.

The first paragraph of Section 8.03 (Limitation on Resignation and Assignment by Seller) is hereby amended in its entirety to read as follows:

The Seller shall neither assign this Agreement or the servicing hereunder or delegate its rights or duties hereunder or any portion hereof (to other than a third party in the case of outsourcing routine tasks such as taxes, insurance and property inspection, in which case the Seller shall be fully liable for such tasks as if the Seller performed them itself) or sell or otherwise dispose of all or substantially all of its property or assets without the prior written consent of the Trustee and the Master Servicer, which consent shall be granted or withheld in the reasonable discretion of such parties; provided, however, that the Seller may assign its rights and obligations hereunder without prior written consent of the Trustee and the Master Servicer to any entity that is directly owned or controlled by the Seller, and the Seller guarantees the performance of such entity hereunder. In the event of such assignment by the Seller, the Seller shall provide the Trustee and the Master Servicer with a written statement guaranteeing the successor entity’s performance of the Seller’s obligations under the Agreement.

A-10

29.

Section 10.09(a)(vii) is hereby amended by replacing “thereto identified by the related Depositor of a type described in Item 1119 of Regulation AB” with the parties listed on Exhibit F hereto.

30.

A new Section 10.10 (Restated Representations and Warranties of the Seller) is hereby added to read.

It is understood and agreed that the representations and warranties set forth in this Article X are hereby restated as of the Closing Date and shall survive the engagement of the Seller to perform the servicing responsibilities hereunder and the delivery of the Servicing Files to the Seller and shall inure to the benefit of the Trustee, the Trust Fund and the Master Servicer. Upon discovery by any of the Seller, the Master Servicer or the Trustee of a breach of any of the foregoing representations and warranties which materially and adversely affects the ability of the Seller to perform its duties and obligations under this Agreement or otherwise materially and adversely affects the value of the Mortgage Loans, the Mortgaged Property or the priority of the security interest on such Mortgaged Property or the interest of the Trustee or the Trust Fund, the party discovering such breach shall give prompt written notice to the other parties.

Within 60 days after the earlier of either discovery by or notice to the Seller of any breach of a representation or warranty set forth in this Article X that materially and adversely affects the ability of the Seller to perform its duties and obligations under this Agreement or otherwise materially and adversely affects the value of the Loans, the Mortgaged Property or the priority of the security interest on such Mortgaged Property, the Seller shall use its Best Efforts promptly to cure such breach in all material respects and, if such breach cannot be cured, the Seller shall, at the Master Servicer’s option, assign the Seller’s rights and obligations under this Agreement (or respecting the affected Mortgage Loans) to a successor servicer selected by the Master Servicer with the prior consent and approval of the Trustee. Such assignment shall be made in accordance with Article VI.

In addition, the Seller shall indemnify (from its own funds) the Trustee, the Trust Fund and Master Servicer and hold each of them harmless against any costs resulting from any claim, demand, defense or assertion based on or grounded upon, or resulting from, a breach of the Seller’s representations and warranties contained in this Agreement. It is understood and agreed that the remedies set forth in this Article X constitute the sole remedies of the Master Servicer, the Trust Fund and the Trustee respecting a breach of the foregoing representations and warranties.

Any cause of action against the Seller relating to or arising out of the breach of any representations and warranties made in this Article X shall accrue upon (i) discovery of such breach by the Seller or notice thereof by the Trustee or Master Servicer to the Seller, (ii) failure by the Seller to cure such breach within the applicable cure period, and (iii) demand upon the Seller by the Trustee or the Master Servicer for compliance with this Agreement.

A-11

31.

Section 11.01 (Events of Default) is hereby amended as follows:

(a) Amending Subsection 11.01(f) in its entirety to read as follows: “the Seller at any time is neither a Fannie Mae or Freddie Mac approved servicer, and the Master Servicer has not terminated the rights and obligations of the Seller under this Agreement and replaced the Seller with a Fannie Mae or Freddie Mac approved servicer within 30 days of the absence of such approval; or”.

(b) Replacing the last paragraph thereof with the following:

Upon receipt by the Seller of such written notice, all authority and power of the Seller under this Agreement, whether with respect to the Mortgage Loans or otherwise, shall pass to and be vested in a successor Seller appointed by the Lehman Brothers Bank, FSB and the Master Servicer. Upon written request from the Master Servicer, the Seller shall prepare, execute and deliver to the successor entity designated by the Seller any and all documents and other instruments, place in such successor’s possession all Servicing Files, and do or cause to be done all other acts or things necessary or appropriate to effect the purposes of such notice of termination, including but not limited to the transfer and endorsement or assignment of the Mortgage Loans and related documents, at the Seller’s sole expense. The Seller shall cooperate with Lehman Brothers Bank, FSB and the Master Servicer and such successor in effecting the termination of the Seller’s responsibilities and rights hereunder, including without limitation, the transfer to such successor for administration by it of all cash amounts which shall at the time be credited by the Seller to the Custodial Account or Escrow Account or thereafter received with respect to the Mortgage Loans.

32.

The parties hereto acknowledge that the word “Purchaser” in Section 11.02 (Waiver of Defaults) shall refer to the “Master Servicer”.

33.

A new Section 11.03 (Termination Without Cause) is hereby added to read as follows:

Section 11.03 Termination Without Cause.

This Agreement shall terminate upon: (i) the later of (a) the distribution of the final payment or liquidation proceeds on the last Mortgage Loan to the Trust Fund (or advances by the Seller for the same), and (b) the disposition of all REO Property acquired upon foreclosure of the last Mortgage Loan and the remittance of all funds due hereunder, or (ii) mutual consent of the Seller, Lehman Brothers Bank, FSB and the Master Servicer in writing or (iii) at the sole option of the Lehman Brothers Bank, FSB, without cause, upon 30 days written notice. Any such notice of termination shall be in writing and delivered to the Seller by registered mail to the address set forth at the beginning of this Agreement. The Master Servicer, the Trustee and the Seller shall comply with the termination procedures set forth in Sections 11.01 and 11.03.

In connection with any such termination referred to in clause (ii) or (iii) above, Lehman Brothers Bank, FSB will be responsible for reimbursing the Seller for all unreimbursed out-of-pocket Servicing Advances within 15 Business Days following the date of termination and other reasonable and necessary out-of-pocket costs associated with any transfer of servicing.

A-12

34.

A new Section 11.04 (Successor to the Seller) is hereby added to read as follows:

Simultaneously with the termination of the Seller’s responsibilities and duties under this Agreement pursuant to Sections 8.03, 11.01 or 11.03, the Master Servicer shall, in accordance with the provisions of the Trust Agreement (i) succeed to and assume all of the Seller’s responsibilities, rights, duties and obligations under this Agreement, or (ii) appoint a successor that meets the eligibility requirements of this Agreement and that shall succeed to all rights and assume all of the responsibilities, duties and liabilities of the Seller under this Agreement with the termination of the Seller’s responsibilities, duties and liabilities under this Agreement. Any successor to the Seller that is not at that time a Seller of other mortgage loans for the Trust Fund shall be subject to the approval of the Master Servicer, Lehman Brothers Bank, FSB, the Trustee and each Rating Agency (as such term is defined in the Trust Agreement). Unless the successor servicer is at that time a servicer of other mortgage loans for the Trust Fund, each Rating Agency must deliver to the Trustee a letter to the effect that such transfer of servicing will not result in a qualification, withdrawal or downgrade of the then-current rating of any of the Certificates. In connection with such appointment and assumption, the Master Servicer or Lehman Brothers Bank, as applicable, may make such arrangements for the compensation of such successor out of payments on the Mortgage Loans as it and such successor shall agree; provided, however, that no such compensation shall be in excess of that permitted the Seller under this Agreement. In the event that the Seller’s duties, responsibilities and liabilities under this Agreement should be terminated pursuant to the aforementioned sections, the Seller shall discharge such duties and responsibilities during the period from the date it acquires knowledge of such termination until the effective date thereof with the same degree of diligence and prudence which it is obligated to exercise under this Agreement, and shall take no action whatsoever that might impair or prejudice the rights or financial condition of its successor. The resignation or removal of the Seller pursuant to the aforementioned sections shall not become effective until a successor shall be appointed pursuant to this Section 11.04 and shall in no event relieve the Seller of the representations and warranties made pursuant to Article X shall be applicable to the Seller notwithstanding any such resignation or termination of the Seller, or the termination of this Agreement.

Within a reasonable period of time, but in no event longer than 30 days of the appointment of a successor entity, the Seller shall prepare, execute and deliver to the successor entity any and all documents and other instruments, place in such successor’s possession all Servicing Files, and do or cause to be done all other acts or things necessary or appropriate to effect the purposes of such notice of termination. The Seller shall cooperate with the Trustee and the Master Servicer, as applicable, and such successor in effecting the termination of the Seller’s responsibilities and rights hereunder and the transfer of servicing responsibilities to the successor Seller, including without limitation, the transfer to such successor for administration by it of all cash amounts which shall at the time be credited by the Seller to the Custodial Account or any Escrow Account or thereafter received with respect to the Mortgage Loans.

A-13

Any successor appointed as provided herein shall execute, acknowledge and deliver to the Trustee, the Seller and the Master Servicer an instrument (i) accepting such appointment, wherein the successor shall make an assumption of the due and punctual performance and observance of each covenant and condition to be performed and observed by the Seller under this Agreement, whereupon such successor shall become fully vested with all the rights, powers, duties, responsibilities, obligations and liabilities of the Seller, with like effect as if originally named as a party to this Agreement. Any termination or resignation of the Seller or termination of this Agreement pursuant to Sections 11.01 or 11.03 shall not affect any claims that the Master Servicer or the Trustee may have against the Seller arising out of the Seller’s actions or failure to act prior to any such termination or resignation.

The Seller shall deliver within three (3) Business Days to the successor seller the funds in the Custodial Account and Escrow Account and all Mortgage Loan Documents and related documents and statements held by it hereunder and the Seller shall account for all funds and shall execute and deliver such instruments and do such other things as may reasonably be required to more fully and definitively vest in the successor all such rights, powers, duties, responsibilities, obligations and liabilities of the Seller.

Upon a successor’s acceptance of appointment as such, the Seller shall notify the Trustee and Master Servicer of such appointment in accordance with the notice procedures set forth herein.

Except as otherwise provided in this Agreement, all reasonable costs and expenses incurred in connection with any transfer of servicing hereunder (whether as a result of termination or removal of the Seller or resignation of the Seller or otherwise), including, without limitation, the costs and expenses of the Master Servicer or any other Person in appointing a successor servicer, or of the Master Servicer in assuming the responsibilities of the Seller hereunder, or of transferring the Servicing Files and the other necessary data to the successor servicer shall be paid by the terminated, removed or resigning Seller from its own funds without reimbursement.

35.

The second sentence of Section 12.03 (Entire Agreement; Amendment) is hereby amended and restated in its entirety as follows:

This Agreement may be amended from time to time by written agreement signed by the Seller and the Purchaser, with the written consent of the Master Servicer, NIMS Insurer and the Trustee.

36.

A new Section 12.10 (Intended Third Party Beneficiaries) is hereby added to read as follows:

Notwithstanding any provision herein to the contrary, the parties to this Agreement agree that it is appropriate, in furtherance of the intent of such parties as set forth herein, that the Master Servicer, the Depositor and the Trustee receive the benefit of the provisions of this Agreement as intended third party beneficiaries of this Agreement to the extent of such provisions. The Seller shall have the same obligations to the Master Servicer, the Depositor and the Trustee as if they were parties to this Agreement, and the Master Servicer, the Depositor and the Trustee shall have the same rights and remedies to enforce the provisions of this Agreement as if they were parties to this Agreement. The Seller shall only take direction from the Master Servicer (if direction by the Master Servicer is required under this Agreement) unless otherwise directed by this Agreement. Notwithstanding the foregoing, all rights and obligations of the Master Servicer, the Depositor and the Trustee hereunder (other than the right to indemnification) shall terminate upon termination of the Trust Agreement and of the Trust Fund pursuant to the Trust Agreement.

A-14

37.

Exhibit 8 (Servicing Criteria to be Addressed in Assessment of Compliance) is hereby amended by inserting Exhibit G, attached hereto, in its place.

A-15

EXHIBIT B

LBH Purchase Agreement and

Bank Purchase Agreement

[INTENTIONALLY OMITTED]

B-1

EXHIBIT C

Flow Agreement

[SEE EXHIBIT 99.3]

C-1

Exhibit D

LBH Mortgage Loans and Bank Mortgage Loans

[INTENTIONALLY OMITTED]

D-1

EXHIBIT E-1

STANDARD LAYOUT FOR MONTHLY REMITTANCE ADVICE

FIELD NAME	DESCRIPTION	FORMAT

INVNUM	INVESTOR LOAN NUMBER	Number no decimals
SERVNUM	SERVICER LOAN NUMBER, REQUIRED	Number no decimals
BEGSCHEDBAL	BEGINNING SCHEDULED BALANCE FOR SCHED/SCHED	Number two decimals
	BEGINNING TRAIL BALANDE FOR ACTUAL/ACTUAL,
	REQUIRED
SCHEDPRIN	SCHEDULED PRINCIPAL AMOUNT FOR SCHEDULED/SCHEDULED	Number two decimals
	ACTUAL PRINCIPAL COLLECTED FOR ACTUAL/ACTUAL,
	REQUIRED, .00 IF NO COLLECTIONS
CURT1	CURTAILMENT 1 AMOUNT, .00 IF NOT APPLICABLE	Number two decimals
CURT1DATE	CURTAILMENT 1 DATE, BLANK IF NOT APPLICABLE	DD-MMM-YY
CURT1ADJ	CURTAILMENT 1 ADJUSTMENT, .00 IF NOT APPLICABLE	Number two decimals
CURT2	CURTAILMENT 2 AMOUNT, .00 IF NOT APPLICABLE	Number two decimals
CURT2DATE	CURTAILMENT 2 DATE, BLANK IF NOT APPLICABLE	DD-MMM-YY
CURT2ADJ	CURTAILMENT 2 ADJUSTMENT, .00 IF NOT APPLICABLE	Number two decimals
LIQPRIN	PAYOFF, LIQUIDATION PRINCIPAL, .00 IF NOT APPLICABLE	Number two decimals
OTHPRIN	OTHER PRINCIPAL, .00 IF NOT APPLICABLE	Number two decimals
PRINREMIT	TOTAL PRINCIPAL REMITTANCE AMOUNT, .00 IF NOT APPLICABLE	Number two decimals
INTREMIT	NET INTEREST REMIT, INCLUDE PAYOFF INTEREST,	Number two decimals
	.00 IF NOT APPLICABLE
TOTREMIT	TOTAL REMITTANCE AMOUNT, .00 IF NOT APPLICABLE	Number two decimals
ENDSCHEDBAL	ENDING SCHEDULED BALANCE FOR SCHEDULED/SCHEDULED	Number two decimals
	ENDING TRIAL BALANCE FOR ACTUAL/ACTUAL
	.00 IF PAIDOFF, LIQUIDATED OR FULL CHARGEOFF
ENDACTBAL	ENDING TRIAL BALANCE	Number two decimals
	.00 IF PAIDOFF, LIQUIDATED OR FULL CHARGEOFF
ENDDUEDATE	ENDING ACTUAL DUE DATE, NOT LAST PAID INSTALLMENT	DD-MMM-YY
ACTCODE	60 IF PAIDOFF, BLANK IF NOT APPLICABLE	Number no decimals
ACTDATE	ACTUAL PAYOFF DATE, BLANK IF NOT APPLICABLE	DD-MMM-YY
INTRATE	INTEREST RATE, REQUIRED	Number seven decimals
	Example .0700000 for 7.00%
SFRATE	SERVICE FEE RATE, REQUIRED	Number seven decimals
	Example .0025000 for .25%
PTRATE	PASS THRU RATE, REQUIRED	Number seven decimals
	Example .0675000 for 6.75%
PIPMT	P&I CONSTANT, REQUIRED	Number two decimals
	.00 IF PAIDOFF

E-1-1

EXHIBIT E-2

STANDARD LAYOUT FOR MONTHLY DEFAULTED LOAN REPORT

Data Field	Format			Data Description
% of MI coverage	NUMBER(6,5)			The percent of coverage provided by the PMI company in the event of loss on a defaulted loan.
Actual MI claim filed date	DATE(MM/DD/YYYY)			Actual date that the claim was submitted to the PMI company.
Actual bankruptcy start date	DATE(MM/DD/YYYY)			Actual date that the bankruptcy petition is filed with the court.
Actual MI claim amount filed	NUMBER(15,2)			The amount of the claim that was filed by the servicer with the PMI company.
Actual discharge date	DATE(MM/DD/YYYY)			Actual date that the Discharge Order is entered in the bankruptcy docket.
Actual due date	DATE(MM/DD/YYYY)			Actual due date of the next outstanding payment amount due from the mortgagor.
Actual eviction complete date	DATE(MM/DD/YYYY)			Actual date that the eviction proceedings are completed by local counsel.
Actual eviction start date	DATE(MM/DD/YYYY)			Actual date that the eviction proceedings are commenced by local counsel.
Actual first legal date	DATE(MM/DD/YYYY)			Actual date that foreclosure counsel filed the first legal action as defined by state statute.
Actual redemption end date	DATE(MM/DD/YYYY)			Actual date that the foreclosure redemption period expires.
Bankruptcy chapter	VARCHAR2(2)	7= Chapter 7 filed 12= Chapter 12 filed	11= Chapter 11 filed 13= Chapter 13 filed	Chapter of bankruptcy filed.
Bankruptcy flag	VARCHAR2(2)	Y=Active Bankruptcy	N=No Active Bankruptcy	Servicer defined indicator that identifies that the property is an asset in an active bankruptcy case.
Bankruptcy Case Number	VARCHAR2(15)			The court assigned case number of the bankruptcy filed by a party with interest in the property.
MI claim amount paid	NUMBER(15,2)			The amount paid to the servicer by the PMI company as a result of submitting an MI claim.

E-2-1

MI claim funds received date	DATE(MM/DD/YYYY)			Actual date that funds were received from the PMI company as a result of transmitting an MI claim.
Current loan amount	NUMBER(10,2)			Current unpaid principal balance of the loan as of the date of reporting to Aurora Master Servicing.
Date FC sale scheduled	DATE(MM/DD/YYYY)			Date that the foreclosure sale is scheduled to be held.
Date relief/dismissal granted	DATE(MM/DD/YYYY)			Actual date that the dismissal or relief from stay order is entered by the bankruptcy court.
Date REO offer accepted	DATE(MM/DD/YYYY)			Actual date of acceptance of an REO offer.
Date REO offer received	DATE(MM/DD/YYYY)			Actual date of receipt of an REO offer.
Delinquency value	NUMBER(10,2)			Value obtained typically from a BPO prior to foreclosure referral not related to loss mitigation activity.
Delinquency value source	VARCHAR2(15)	BPO= Broker's Price Opinion	Appraisal=Appraisal	Name of vendor or management company that provided the delinquency valuation amount.
Delinquency value date	DATE(MM/DD/YYYY)			Date that the delinquency valuation amount was completed by vendor or property management company.
Delinquency flag	VARCHAR2(2)	Y= 90+ delinq. Not in FC, Bky or Loss mit	N=Less than 90 days delinquent	Servicer defined indicator that identifies that the loan is delinquent but is not involved in loss mitigation, foreclosure, bankruptcy or REO.
Foreclosure flag	VARCHAR2(2)	Y=Active foreclosure	N=No active foreclosure	Servicer defined indicator that identifies that the loan is involved in foreclosure proceedings.
Corporate expense balance	NUMBER(10,2)			Total of all cumulative expenses advanced by the servicer for non-escrow expenses such as but not limited to: FC fees and costs, bankruptcy fees and costs, property preservation and property inspections.

E-2-2

Foreclosure attorney referral date	DATE(MM/DD/YYYY)			Actual date that the loan was referred to local counsel to begin foreclosure proceedings.
Foreclosure valuation amount	NUMBER(15,2)			Value obtained during the foreclosure process. Usually as a result of a BPO and typically used to calculate the bid.
Foreclosure valuation date	DATE(MM/DD/YYYY)			Date that foreclosure valuation amount was completed by vendor or property management company.
Foreclosure valuation source	VARCHAR2(80)	BPO= Broker's Price Opinion	Appraisal=Appraisal	Name of vendor or management company that provided the foreclosure valuation amount.
FHA 27011A transmitted date	DATE(MM/DD/YYYY)			Actual date that the FHA 27011A claim was submitted to HUD.
FHA 27011 B transmitted date	DATE(MM/DD/YYYY)			Actual date that the FHA 27011B claim was submitted to HUD.
VA LGC/ FHA Case number	VARCHAR2(15)			Number that is assigned individually to the loan by either HUD or VA at the time of origination. The number is located on the Loan Guarantee Certificate (LGC) or the Mortgage Insurance Certificate (MIC).
FHA Part A funds received date	DATE(MM/DD/YYYY)			Actual date that funds were received from HUD as a result of transmitting the 27011A claim.
Foreclosure actual sale date	DATE(MM/DD/YYYY)			Actual date that the foreclosure sale was held.
Servicer loan number	VARCHAR2(15)			Individual number that uniquely identifies loan as defined by servicer.
Loan type	VARCHAR2(2)	1=FHA Residential 3=Conventional w/o PMI 5=FHA Project 7=HUD 235/265 9=Farm Loan S=Sub prime	2=VA Residentia 4=Commercial 6=Conventional w/PMI 8=Daily Simple Interest Loan U=Unknown	Type of loan being serviced generally defined by the existence of certain types of insurance (i.e.: FHA, VA, conventional insured, conventional uninsured, SBA, etc.).
Loss mit approval date	DATE(MM/DD/YYYY)			The date determined that the servicer and mortgagor agree to pursue a defined loss mitigation alternative.
Loss mit flag	VARCHAR2(2)	Y= Active loss mitigation	N=No active loss mitigation	Servicer defined indicator that identifies that the loan is involved in completing a loss mitigation alternative.
Loss mit removal date	DATE(MM/DD/YYYY)			The date that the mortgagor is denied loss mitigation alternatives or the date that the loss mitigation alternative is completed resulting in a current or liquidated loan.

E-2-3

Loss mit type	VARCHAR2(2)	L= Loss Mitigation NP=Pending non-performing sale DI= Deed in lieu MO=Modification SH=Short sale	LT=Litigation pending CH= Charge off FB= Forbearance plan PC=Partial claim VA=VA refunding	The defined loss mitigation alternative identified on the loss mit approval date.
Loss mit value	NUMBER(10,2)			Value obtained typically from a BPO prior to foreclosure sale intended to aid in the completion of loss mitigation activity.
Loss mit value date	DATE(MM/DD/YYYY)			Name of vendor or management company that provided the loss mitigation valuation amount.
Loss mit value source	VARCHAR2(15)	BPO= Broker's Price Opinion	Appraisal=Appraisal	Date that the loss mitigation valuation amount was completed by vendor or property management company.
MI certificate number	VARCHAR2(15)			A number that is assigned individually to the loan by the PMI company at the time of origination. Similar to the VA LGC/FHA Case Number in purpose.
LPMI Cost	NUMBER(7,7)			The current premium paid to the PMI company for Lender Paid Mortgage Insurance.
Occupancy status	VARCHAR2(1)	O=Owner occupied U=Unknown	T=Tenant occupied V=Vacant	The most recent status of the property regarding who if anyone is occupying the property. Typically a result of a routine property inspection.
First Vacancy date/ Occupancy status date	DATE(MM/DD/YYYY)			The date that the most recent occupancy status was determined. Typically the date of the most recent property inspection.
Original loan amount	NUMBER(10,2)			Amount of the contractual obligations (i.e.: note and mortgage/deed of trust).

E-2-4

Original value amount	NUMBER(10,2)			Appraised value of property as of origination typically determined through the appraisal process.
Origination date	DATE(MM/DD/YYYY)			Date that the contractual obligations (i.e.: note and mortgage/deed of trust) of the mortgagor was executed.
FHA Part B funds received date	DATE(MM/DD/YYYY)			Actual date that funds were received from HUD as a result of transmitting the 27011B claim.
Post petition due date	DATE(MM/DD/YYYY)			The post petition due date of a loan involved in a chapter 13 bankruptcy.
Property condition	VARCHAR2(2)	1= Excellent 3=Average 5=Poor	2=Good 4=Fair 6=Very poor	Physical condition of the property as most recently reported to the servicer by vendor or property management company.
Property type	VARCHAR2(2) 3=Condo 6=Prefabricated 7=Mobile home A=Church O=Co-op CT=Condotel	1=Single family 4=Multifamily B=Commercial U=Unknown P=PUD M=Manufactured housing MU=Mixed use	2=Town house 5=Other C=Land only D=Farm R=Row house 24= 2-4 family	Type of property secured by mortgage such as: single family, 2-4 unit, etc.
Reason for default	VARCHAR2(3)	001=Death of principal mtgr 003=Illness of mtgr's family member 004=Death of mtgr's family member 006=Curtailment of income 008=Abandonment of property 011=Property problem 013=Inability to rent property 015=Other 017=Business failure 022=Energy-Environment costs 026= Payment adjustment 029=Transfer ownership pending 031=Unable to contact borrower	002=Illness of principal mtgr 005=Marital difficulties 007=Excessive obligations 009=Distant employee transfer 012=Inability to sell property 014=Military service 016=Unemployment 019=Casualty loss 023= Servicing problems 027=Payment dispute 030=Fraud INC=Incarceration	Cause of delinquency as identified by mortgagor.
REO repaired value	NUMBER(10,2)			The projected value of the property that is adjusted from the "as is" value assuming necessary repairs have been made to the property as determined by the vendor/property management company.

E-2-5

REO list price adjustment amount	NUMBER(15,2)			The most recent listing/pricing amount as updated by the servicer for REO properties.
REO list price adjustment date	DATE(MM/DD/YYYY)			The most recent date that the servicer advised the agent to make an adjustment to the REO listing price.
REO value (as is)	NUMBER(10,2)			The value of the property without making any repairs as determined by the vendor/property management company.
REO actual closing date	DATE(MM/DD/YYYY)			The actual date that the sale of the REO property closed escrow.
REO flag	VARCHAR2(7)	Y=Active REO	N=No active REO	Servicer defined indicator that identifies that the property is now Real Estate Owned.
REO original list date	DATE(MM/DD/YYYY)			The initial/first date that the property was listed with an agent as an REO.
REO original list price	NUMBER(15,2)			The initial/first price that was used to list the property with an agent as an REO.
REO net sales proceeds	NUMBER(10,2)			The actual REO sales price less closing costs paid. The net sales proceeds are identified within the HUD1 settlement statement.
REO sales price	NUMBER(10,2)			Actual sales price agreed upon by both the purchaser and servicer as documented on the HUD1 settlement statement.
REO scheduled close date	DATE(MM/DD/YYYY)			The date that the sale of the REO property is scheduled to close escrow.
REO value date	DATE(MM/DD/YYYY)			Date that the vendor or management company completed the valuation of the property resulting in the REO value (as is).
REO value source	VARCHAR2(15)	BPO= Broker's Price Opinion	Appraisal=Appraisal	Name of vendor or management company that provided the REO value (as is).
Repay first due date	DATE(MM/DD/YYYY)			The due date of the first scheduled payment due under a forbearance or repayment plan agreed to by both the mortgagor and servicer.
Repay next due date	DATE(MM/DD/YYYY)			The due date of the next outstanding payment due under a forbearance or repayment plan agreed to by both the mortgagor and servicer.

E-2-6

Repay plan broken/reinstated/closed date	DATE(MM/DD/YYYY)	The servicer defined date upon which the servicer considers that the plan is no longer in effect as a result of plan completion or mortgagor's failure to remit payments as scheduled.
Repay plan created date	DATE(MM/DD/YYYY)	The date that both the mortgagor and servicer agree to the terms of a forbearance or repayment plan.
SBO loan number	NUMBER(9)	Individual number that uniquely identifies loan as defined by Aurora Master Servicing.
Escrow balance/advance balance	NUMBER(10,2)	The positive or negative account balance that is dedicated to payment of hazard insurance, property taxes, MI, etc. (escrow items only).
Title approval letter received date	DATE(MM/DD/YYYY)	The actual date that the title approval was received as set forth in the HUD title approval letter.
Title package HUD/VA date	DATE(MM/DD/YYYY)	The actual date that the title package was submitted to either HUD or VA.
VA claim funds received date	DATE(MM/DD/YYYY)	The actual date that funds were received by the servicer from the VA for the expense claim submitted by the servicer.
VA claim submitted date	DATE(MM/DD/YYYY)	The actual date that the expense claim was submitted by the servicer to the VA.
VA first funds received amount	NUMBER(15,2)	The amount of funds received by the servicer from VA as a result of the specified bid.
VA first funds received date	DATE(MM/DD/YYYY)	The date that the funds from the specified bid were received by the servicer from the VA.
VA NOE submitted date	DATE(MM/DD/YYYY)	Actual date that the Notice of Election to Convey was submitted to the VA.
Zip Code	VARCHAR2(5)	U.S. postal zip code that corresponds to property location.

E-2-7

FNMA Delinquency status code	VARCHAR2(3) 24=Drug seizure 28=Modification 31=Probate 44=Deed-in-lieu 62=VA no-bid 65=Ch. 7 bankruptcy	09=Forbearance 26=Refinance 29=Charge-off 32=Military indulgence 49=Assignment 63=VA Refund 66=Ch. 11 bankruptcy	17=Preforeclosure sale 27=Assumption 30=Third-party sale 43=Foreclosure 61=Second lien considerations 64=VA Buydown 67=Ch. 13 bankruptcy	The code that is electronically reported to FNMA by the servicer that reflects the current defaulted status of a loan (i.e.: 65, 67, 43 or 44).
FNMA delinquency reason code	VARCHAR2(3)	001=Death of principal mtgr 003=Illness of mtgr's family member 005=Marital difficulties 007=Excessive obligations 009=Distant employee transfer 012=Inability to sell property 014=Military service 016=Unemployment 019=Casualty loss 023= Servicing problems 027=Payment dispute 030=Fraud INC=Incarceration	002=Illness of principal mtgr 004=Death of mtgr's family member 006=Curtailment of income 008=Abandonment of property 011=Property problem 013=Inability to rent property 015=Other 017=Business failure 022=Energy-Environment costs 026= Payment adjustment 029=Transfer ownership pending 031=Unable to contact borrower	The code that is electronically reported to FNMA by the servicer that describes the circumstance that appears to be the primary contributing factor to the delinquency.
Suspense balance	NUMBER(10,2)			Money submitted to the servicer, credited to the mortgagor's account but not allocated to principal, interest, escrow, etc.
Restricted escrow balance	NUMBER(10,2)			Money held in escrow by the mortgage company through completion of repairs to property.
Investor number	NUMBER (10,2)			Unique number assigned to a group of loans in the servicing system.

E-2-8

Exhibit F

TRANSACTION PARTIES

Trustee: U.S. Bank National Association

Securities Administrator: N/A

Master Servicer: Aurora Loan Services LLC

Credit Risk Manager: N/A

PMI Insurer: N/A

Interest Rate Swap Counterparty: N/A

Interest Rate Cap Counterparty: N/A

Servicer(s): GreenPoint Mortgage Funding, Inc. and GMAC Mortgage Funding, Inc.

Originator(s): GreenPoint Mortgage Funding, Inc.

Custodian: U.S. Bank National Association

Seller: Lehman Brothers Holdings Inc.

F-1

EXHIBIT G

SERVICING CRITERIA TO BE ADDRESSED IN ASSESSMENT OF COMPLIANCE

The assessment of compliance to be delivered by [the Company] [Name of Subservicer] shall address, at a minimum, the applicable criteria identified below as “Applicable Servicing Criteria”:


*Servicing Criteria*		*Applicable* *Servicing Criteria*
Reference	Criteria
	General Servicing Considerations
1122(d)(1)(i)	Policies and procedures are instituted to monitor any performance or other triggers and events of default in accordance with the transaction agreements.	X
1122(d)(1)(ii)	If any material servicing activities are outsourced to third parties, policies and procedures are instituted to monitor the third party’s performance and compliance with such servicing activities.	X
1122(d)(1)(iii)	Any requirements in the transaction agreements to maintain a back-up servicer for the mortgage loans are maintained.
1122(d)(1)(iv)	A fidelity bond and errors and omissions policy is in effect on the party participating in the servicing function throughout the reporting period in the amount of coverage required by and otherwise in accordance with the terms of the transaction agreements.	X
	Cash Collection and Administration
1122(d)(2)(i)	Payments on mortgage loans are deposited into the appropriate custodial bank accounts and related bank clearing accounts no more than two business days following receipt, or such other number of days specified in the transaction agreements.	X
1122(d)(2)(ii)	Disbursements made via wire transfer on behalf of an obligor or to an investor are made only by authorized personnel.	X
1122(d)(2)(iii)	Advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements.	X
1122(d)(2)(iv)	The related accounts for the transaction, such as cash reserve accounts or accounts established as a form of overcollateralization, are separately maintained (e.g., with respect to commingling of cash) as set forth in the transaction agreements.	X
1122(d)(2)(v)	Each custodial account is maintained at a federally insured depository institution as set forth in the transaction agreements. For purposes of this criterion, “federally insured depository institution” with respect to a foreign financial institution means a foreign financial institution that meets the requirements of Rule 13k-1(b)(1) of the Securities Exchange Act.	X
1122(d)(2)(vi)	Unissued checks are safeguarded so as to prevent unauthorized access.	X
1122(d)(2)(vii)	Reconciliations are prepared on a monthly basis for all asset-backed securities related bank accounts, including custodial accounts and related bank clearing accounts. These reconciliations are (A) mathematically accurate; (B) prepared within 30 calendar days after the bank statement cutoff date, or such other number of days specified in the transaction agreements; (C) reviewed and approved by someone other than the person who prepared the reconciliation; and (D) contain explanations for reconciling items. These reconciling items are resolved within 90 calendar days of their original identification, or such other number of days specified in the transaction agreements.	X

G-1


*Servicing Criteria*		*Applicable* *Servicing Criteria*
Reference	Criteria
	Investor Remittances and Reporting
1122(d)(3)(i)	Reports to investors, including those to be filed with the Commission, are maintained in accordance with the transaction agreements and applicable Commission requirements. Specifically, such reports (A) are prepared in accordance with timeframes and other terms set forth in the transaction agreements; (B) provide information calculated in accordance with the terms specified in the transaction agreements; (C) are filed with the Commission as required by its rules and regulations; and (D) agree with investors’ or the trustee’s records as to the total unpaid principal balance and number of mortgage loans serviced by the Servicer.	X
1122(d)(3)(ii)	Amounts due to investors are allocated and remitted in accordance with timeframes, distribution priority and other terms set forth in the transaction agreements.	X
1122(d)(3)(iii)	Disbursements made to an investor are posted within two business days to the Servicer’s investor records, or such other number of days specified in the transaction agreements.	X
1122(d)(3)(iv)	Amounts remitted to investors per the investor reports agree with cancelled checks, or other form of payment, or custodial bank statements.	X
	Pool Asset Administration
1122(d)(4)(i)	Collateral or security on mortgage loans is maintained as required by the transaction agreements or related mortgage loan documents.	X
1122(d)(4)(ii)	Mortgage loan and related documents are safeguarded as required by the transaction agreements.	X
1122(d)(4)(iii)	Any additions, removals or substitutions to the asset pool are made, reviewed and approved in accordance with any conditions or requirements in the transaction agreements.	X
1122(d)(4)(iv)	Payments on mortgage loans, including any payoffs, made in accordance with the related mortgage loan documents are posted to the Servicer’s obligor records maintained no more than two business days after receipt, or such other number of days specified in the transaction agreements, and allocated to principal, interest or other items (e.g., escrow) in accordance with the related mortgage loan documents.	X
1122(d)(4)(v)	The Servicer’s records regarding the mortgage loans agree with the Servicer’s records with respect to an obligor’s unpaid principal balance.	X
1122(d)(4)(vi)	Changes with respect to the terms or status of an obligor's mortgage loans (e.g., loan modifications or re-agings) are made, reviewed and approved by authorized personnel in accordance with the transaction agreements and related pool asset documents.	X
1122(d)(4)(vii)	Loss mitigation or recovery actions (e.g., forbearance plans, modifications and deeds in lieu of foreclosure, foreclosures and repossessions, as applicable) are initiated, conducted and concluded in accordance with the timeframes or other requirements established by the transaction agreements.	X
1122(d)(4)(viii)	Records documenting collection efforts are maintained during the period a mortgage loan is delinquent in accordance with the transaction agreements. Such records are maintained on at least a monthly basis, or such other period specified in the transaction agreements, and describe the entity’s activities in monitoring delinquent mortgage loans including, for example, phone calls, letters and payment rescheduling plans in cases where delinquency is deemed temporary (e.g., illness or unemployment).	X
1122(d)(4)(ix)	Adjustments to interest rates or rates of return for mortgage loans with variable rates are computed based on the related mortgage loan documents.	X

G-2


*Servicing Criteria*		*Applicable* *Servicing Criteria*
Reference	Criteria
1122(d)(4)(x)	Regarding any funds held in trust for an obligor (such as escrow accounts): (A) such funds are analyzed, in accordance with the obligor’s mortgage loan documents, on at least an annual basis, or such other period specified in the transaction agreements; (B) interest on such funds is paid, or credited, to obligors in accordance with applicable mortgage loan documents and state laws; and (C) such funds are returned to the obligor within 30 calendar days of full repayment of the related mortgage loans, or such other number of days specified in the transaction agreements.	X
1122(d)(4)(xi)	Payments made on behalf of an obligor (such as tax or insurance payments) are made on or before the related penalty or expiration dates, as indicated on the appropriate bills or notices for such payments, provided that such support has been received by the servicer at least 30 calendar days prior to these dates, or such other number of days specified in the transaction agreements.	X
1122(d)(4)(xii)	Any late payment penalties in connection with any payment to be made on behalf of an obligor are paid from the servicer’s funds and not charged to the obligor, unless the late payment was due to the obligor’s error or omission.	X
1122(d)(4)(xiii)	Disbursements made on behalf of an obligor are posted within two business days to the obligor’s records maintained by the servicer, or such other number of days specified in the transaction agreements.	X
1122(d)(4)(xiv)	Delinquencies, charge-offs and uncollectible accounts are recognized and recorded in accordance with the transaction agreements.	X
1122(d)(4)(xv)	Any external enhancement or other support, identified in Item 1114(a)(1) through (3) or Item 1115 of Regulation AB, is maintained as set forth in the transaction agreements.

[NAME OF COMPANY] [NAME OF SUBSERVICER]

Date: _________________________

By:

G-3

Lehman XS Trust Series 2006-GP4 8-K