In most cases, the insurance company will not settle your claim until you sign a "release for damages. The claim settlement letter is a fundamental document in the insurance claim process, marking the conclusion of the claim.By signing the release for settlement form, you are accepting the settlement offer and the insurance company has to make payment within 30 days. Use our sample demand letter to draft your letter. Simply send a very short letter advising of the accident, when and where it happened, and that you were injured. This is a sample settlement demand letter for a car accident claim involving soft tissue injuries. Please understand that this is my prefiling settlement demand. If I am forced to file a lawsuit, I'll ask a jury to award substantially more. For a property damage claim you should submit two written itemized estimates attached on company letterhead or an itemized paid invoice with proof of payment. As a reminder, please do not file copies of settlement letters in the Clerk's.