A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan.How to fill out the Payoff Request Letter Templates? An auto loan payoff letter is just a way to prove that you have paid in full for a car. If you are selling your vehicle, often the buyer will ask to. You start with the company you paid. This Los Angeles County program gives you a chance to review real estate documents to protect you from fraud and protect your home from a foreclosure. The Vehicle Payoff Sample Letter form is a crucial document for individuals aiming to transfer their vehicle loan to the State Department Federal Credit Union. Both the seller and buyer need to fill out and submit the Notice of Transfer and Release of Liability form (REG 138). Read some of our more frequently asked questions about auto loans with Wells Fargo today.