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

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 OF AGREEMENT: FEBRUARY 6, 2004