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. Use this letter to help you negotiate a full and final settlement offer with a creditor. Not sure about how to counter your creditor's debt settlement offer? Download this free Debt Settlement Offer Letter sample. This article provides a template for a debt settlement proposal letter and explains what a debt settlement letter should contain. An account settlement can be a payment that zeros an account balance or the offsetting of balances between two parties. Get your free copy here! All invoices are due and payable upon presentation.