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.A debt settlement letter is all you need to negotiate debts with your creditors. It asks you to pay a certain settlement amount to the collection agency. This article provides a template for a debt settlement proposal letter and explains what a debt settlement letter should contain. Not sure about how to counter your creditor's debt settlement offer? Download this free Debt Settlement Offer Letter sample. You have 30 days to respond to a debt lawsuit in California. Use this letter to help you negotiate a full and final settlement offer with a creditor. Here is a sample letter showing how to request a settlement of your debt.