American Home Mortgage Investment Trust 2005-1 Sample Contracts

EXHIBIT 3.1

Trust Agreement • April 7th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • Delaware

• Contract Type
  Trust Agreement
• Filed
  April 7th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  Delaware

AMERICAN HOME MORTGAGE TRUST 2005-1, as Issuer and

Master Servicing Agreement • April 7th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • New York

• Contract Type
  Master Servicing Agreement
• Filed
  April 7th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  New York

AMERICAN HOME MORTGAGE TRUST 2005-1, as Issuer

Heloc Servicing Agreement • April 7th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • New York

• Contract Type
  Heloc Servicing Agreement
• Filed
  April 7th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  New York

AMERICAN HOME MORTGAGE TRUST 2005-1, as Issuer

RMBS Servicing Agreement • April 7th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • New York

• Contract Type
  RMBS Servicing Agreement
• Filed
  April 7th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  New York

AMERICAN HOME MORTGAGE TRUST 2005-1, as Issuer and

Heloc Back-Up Servicing Agreement • April 7th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • New York

• Contract Type
  Heloc Back-Up Servicing Agreement
• Filed
  April 7th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  New York

WELLS FARGO BANK, N.A., as RMBS Master Servicer, AMERICAN HOME MORTGAGE TRUST 2005-1, as Issuer DEUTSCHE BANK NATIONAL TRUST COMPANY, as Indenture Trustee AMERICAN HOME MORTGAGE ACCEPTANCE, INC. as Seller and AMERICAN HOME MORTGAGE SERVICING, INC. as...

RMBS Servicing Agreement • August 11th, 2005 • American Home Mortgage Investment Trust 2005-1 • Asset-backed securities • New York

• Contract Type
  RMBS Servicing Agreement
• Filed
  August 11th, 2005
• Company
  American Home Mortgage Investment Trust 2005-1
• Industry
  Asset-backed securities
• Jurisdiction
  New York

AMENDMENT NO. 1 made as of this 1st day of June 2005, by and among Wells Fargo Bank, N.A., as RMBS Master Servicer (“RMBS Master Servicer”), American Home Mortgage Investment Trust 2005-1, as Issuer (the “Issuer”), Deutsche Bank National Trust Company, as Indenture Trustee (the “Indenture Trustee”), American Home Mortgage Acceptance, Inc. as Seller (the “Seller”) and American Home Mortgage Servicing, Inc., as RMBS Servicer (“RMBS Servicer”).