Edit, sign, and share private mortgage payoff letter template online. No need to install software, just go to DocHub, and sign up instantly and for free.{This is an Adjustable Rate Mortgage. Under the terms of this loan the next Change Date for the interest rate charged is {Insert Next Rate Change Date}. Forms and Other Documents: Thrift Regulation, Mortgage Origination, Mortgage Servicing, Consumers. Display 20 10 25 50 All downloads per page. Edit, sign, and share payoff form online. For each loan, we will need: Lender Name; Customer Service Address; Lender Phone Number; Mortgage Account Number. 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.