PURCHASER: UBS REAL ESTATE SECURITIES INC.

ADDRESS:

1285 AVENUE OF THE AMERICAS NEW YORK, NEW YORK 10019

ATTENTION: GEORGE A. MANGIARACINA

TELEPHONE: (212) 713-3734

ATTENTION: ROBERT CARPENTER

TELEPHONE: (212) 713-8749

CUSTODIAN:

DEUTSCHE BANK NATIONAL TRUST COMPANY

ADDRESS: 1761 EAST ST. ANDREW PLACE SANTA ANA, CALIFORNIA 92705-4934

ATTENTION: MORTGAGE CUSTODY- AH099C

TELEPHONE: (714) 247-6000

FACSIMILE: (714) 247-6058

SELLER:

AMERICAN HOME MORTGAGE INVESTMENT CORP.

ADDRESS: 520 BROADHOLLOW ROAD MELVILLE, NEW YORK 11747

ATTENTION: STEPHEN A. HOZIE, CHIEF FINANCIAL OFFICER

TELEPHONE: (516) 396-7700

SELLER:

AMERICAN HOME MORTGAGE ACCEPTANCE, INC.

ADDRESS: 520 BROADHOLLOW ROAD MELVILLE, NEW YORK 11747

ATTENTION: STEPHEN A. HOZIE, CHIEF FINANCIAL OFFICER

TELEPHONE: (516) 396-7700

SELLER:

AMERICAN HOME MORTGAGE HOLDINGS, INC.

ADDRESS: 520 BROADHOLLOW ROAD MELVILLE, NEW YORK 11747

ATTENTION: STEPHEN A. HOZIE, CHIEF FINANCIAL OFFICER

TELEPHONE: (516) 396-7700

SELLER:

AMERICAN HOME MORTGAGE CORP.

ADDRESS: 520 BROADHOLLOW ROAD MELVILLE, NEW YORK 11747

ATTENTION: MICHAEL STRAUSS, PRESIDENT

TELEPHONE: (516) 396-7700

SELLER: COLUMBIA NATIONAL, INCORPORATED

ADDRESS: 520 BROADHOLLOW ROAD MELVILLE, NEW YORK 11747

ATTENTION: MICHAEL STRAUSS, PRESIDENT

TELEPHONE: (516) 396-7700

ATTENTION: STEPHEN A. HOZIE, CHIEF FINANCIAL OFFICER

TELEPHONE: (516) 396-7700

DATE: FEBRUARY 6, 2004

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