10-D 1 dsl07ar1_10d-200705.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 10-D ASSET-BACKED ISSUER DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the monthly distribution period from: April 2, 2007 to May 1, 2007 Commission File Number of issuing entity: 333-130961-36 DSLA Mortgage Loan Trust 2007-AR1 (Exact name of issuing entity as specified in its charter) Commission File Number of depositor: 333-130961 Greenwich Capital Acceptance, Inc. (Exact name of depositor as specified in its charter) Greenwich Capital Financial Products, Inc. (Exact name of sponsor as specified in its charter) New York (State or other jurisdiction of incorporation or organization of the issuing entity) 54-2199150 54-2199151 54-2199152 (I.R.S. Employer Identification No.) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices of the issuing entity) (Zip Code) (410) 884-2000 (Telephone number, including area code) Not Applicable (Former name, former address, if changed since last report) Registered/reporting pursuant to (check one) Title of Section Section Section Name of Exchange Class 12(b) 12(g) 15(d) (If Section 12(b)) 1A-1A _____ _____ __X___ ____________ 1A-1B _____ _____ __X___ ____________ 2A-1A _____ _____ __X___ ____________ 2A-1B _____ _____ __X___ ____________ 2A-1C _____ _____ __X___ ____________ M-1 _____ _____ __X___ ____________ M-2 _____ _____ __X___ ____________ M-3 _____ _____ __X___ ____________ M-4 _____ _____ __X___ ____________ M-5 _____ _____ __X___ ____________ M-6 _____ _____ __X___ ____________ M-7 _____ _____ __X___ ____________ M-8 _____ _____ __X___ ____________ M-9 _____ _____ __X___ ____________ C _____ _____ __X___ ____________ P _____ _____ __X___ ____________ R _____ _____ __X___ ____________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes __X__ No ____ Part I - DISTRIBUTION INFORMATION Item 1. Distribution and Pool Performance Information On May 21, 2007 a distribution was made to holders of DSLA Mortgage Loan Trust 2007-AR1. The distribution report is attached as an Exhibit to this Form 10-D. Please see Item 9(b), Exhibit 99.1 for the related information. Part II - OTHER INFORMATION Item 7. Significant Enhancement Provider Information. The unaudited consolidated balance sheets as of March 31, 2007 and December 31, 2006, the unaudited consolidated statements of operations for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of stockholders' equity for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of cash flows for the three months ended March 31, 2007 and 2006, all of Ambac Assurance Corporation and Subsidiaries, are incorporated herein by reference from Exhibit 99.03 of the Quarterly Report on Form 10-Q of Ambac Financial Group, Inc., as filed with the Commission on May 10, 2007. Item 9. Exhibits. (a) The following is a list of documents filed as part of this Report on Form 10-D: (99.1) Monthly report distributed to holders of DSLA Mortgage Loan Trust 2007-AR1, relating to the May 21, 2007 distribution. (99.2) Copy of the unaudited consolidated balance sheets as of March 31, 2007 and December 31, 2006, the unaudited consolidated statements of operations for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of stockholders' equity for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of cash flows for the three months ended March 31, 2007 and 2006, all of Ambac Assurance Corporation and Subsidiaries, are incorporated herein by reference from Exhibit 99.03 of the Quarterly Report on Form 10-Q of Ambac Financial Group, Inc., as filed with the Commission on May 10, 2007. (b) The exhibits required to be filed by the Registrant pursuant to this Form are listed above and in the Exhibit Index that immediately follows the signature page hereof. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. DSLA Mortgage Loan Trust 2007-AR1 (Issuing Entity) Wells Fargo Bank, N.A. (Master Servicer) /s/ Kelly Rentz Kelly Rentz, Officer Date: June 4, 2007 EXHIBIT INDEX Exhibit Number Description EX-99.1 Monthly report distributed to holders of DSLA Mortgage Loan Trust 2007-AR1, relating to the May 21, 2007 distribution. EX-99.2 Copy of the unaudited consolidated balance sheets as of March 31, 2007 and December 31, 2006, the unaudited consolidated statements of operations for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of stockholders' equity for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of cash flows for the three months ended March 31, 2007 and 2006, all of Ambac Assurance Corporation and Subsidiaries, are incorporated herein by reference from Exhibit 99.03 of the Quarterly Report on Form 10-Q of Ambac Financial Group, Inc., as filed with the Commission on May 10, 2007. EX-99.1 Downey Savings and Loan Association Mortgage Loan Pass-Through Certificates Distribution Date: 5/21/2007 Downey Savings and Loan Association Mortgage Loan Pass-Through Certificates Series 2007-AR1 Contact: Customer Service - CTSLink Wells Fargo Bank, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 www.ctslink.com Telephone: (301) 815-6600 Fax: (301) 815-6660

Foreclosure Detail - All Mortgage Loans in Foreclosure during Current Period

Prepayment Rates

EX-99.2 Copy of the unaudited consolidated balance sheets as of March 31, 2007 and December 31, 2006, the unaudited consolidated statements of operations for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of stockholders' equity for the three months ended March 31, 2007 and 2006, the unaudited consolidated statements of cash flows for the three months ended March 31, 2007 and 2006, all of Ambac Assurance Corporation and Subsidiaries, are incorporated herein by reference from Exhibit 99.03 of the Quarterly Report on Form 10-Q of Ambac Financial Group, Inc., as filed with the Commission on May 10, 2007.

DSLA 2007-AR1 10-D