If your lender agrees to settle a debt for less than you owe, you'll need a written agreement of the terms. This article provides a template for a debt settlement proposal letter and explains what a debt settlement letter should contain.Is a debt collector pursuing you for an old debt you wish was long behind you? If so, you may try to settle the obligation. Use this letter to help you negotiate a full and final settlement offer with your lender. Below, we've created an example of a debt settlement proposal letter that you can use as a guide. Your letter can be sent via your preferred contact method. How to use this sample letter: 1. Read the background below. 2. This form is furnished to give you a statement of actual settlement costs.