Complete Form MVR4A properly signing in the presence of a notary. 2. How to fill out the Payoff Request Letter Templates?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. Fails to specify a Type of New Vehicle Floorplan Swing Line Loan in a New Vehicle Floorplan Swing Line Loan Notice or if a Payment Commitment or Payoff Letter.