1) North Carolina General Statutes §45-36.9 requires that you must submit a satisfaction instrument to the. Edit, sign, and share loan payoff letter online.No need to install software, just go to DocHub, and sign up instantly and for free. Do you need a loan payoff request form? 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.