In this comprehensive guide, we'll walk you through an example car accident settlement letter and break down its key elements. Write out a paragraph or two describing the accident or incident that injured you.Don't give too many details. Tips for creating a small claims demand letter. Your letter should include a concise factual summary of the accident, an overview of your damages, your settlement demand, and not much more. A settlement demand letter is an offer to resolve a personal injury claim. Generally, an El Paso personal injury lawyer prepares the demand letter. I just received a settlement demand letter from the other driver wanting me to fill out a financial affidavit. Below is a sample demand letter for an auto accident case. Please complete and sign Claim Form CD-1.