Said Deed of Trust as herein modified shall constitute one Deed of Trust. Escrow No. MODIFICATION AND SUPPLEMENT TO DEED OF TRUST.The mortgage modification agreement is a legal document between a lender and borrower to change an existing loan's terms. Borrower desires to secure the payment of the Debt (as defined in Article 2) and the performance of all of the Other Obligations (as defined in Article 2). Forms to Complete Online and Print. It's a long shot, but it will get you out from under the mortgage. 5887 Copley Dr. Floor 1, 3, 4, 5, 6. San Diego, CA 92111. On July 29, 2012, the Harjos applied to Nationstar for a mortgage modification.