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.The plaintiff will report to the. This article provides a template for a debt settlement proposal letter and explains what a debt settlement letter should contain. A sample lump sum settlement offer is on page 6. You have 30 days to respond to a debt lawsuit in California. When drafting a debt settlement letter, you'll want to include basic information, including your name and account number.