The mortgage modification agreement is a legal document between a lender and borrower to change an existing loan's terms. Acknowledgement of Debt.The form can be returned via mail, fax, or e-mail. In the loan modification agreement; and. (i) The Court has entered an Order Approving Trial Loan Modification. Looking for court forms or information about representing yourself in a court case? Depending on the program, you may need to submit a "hardship letter" that details your situation in narrative form. Step 5: Complete trial payments. Contact your mortgage servicer's "loss mitigation" or "loan modification" division. Loan Modifications And Other Forms Of Loss Mitigation.