The City of San José processes requests for payoff demands of existing homebuyer and home repair loans, and affordability restrictions (i.e. Fill out the form below to request a loan payoff letter.If you have any questions, please contact Loan Customer Service at 1-800-677-6272 option 5, option 2. 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. A letter of explanation is your chance to answer any questions a lender might have about your loan application. Creating a payoff letter is essential to any loan or mortgage repayment process. Our free templates and this guide can help you get started. Include the loan or mortgage number. Fill out the form below to request a loan payoff letter.