A Letter: Mortgage Payoff Request of Second Mortgage is a written request sent to a lender to pay off a second mortgage loan in full. This type of letter is typically used when a borrower intends to liquidate the loan balance in order to free up funds for other purposes. The letter should include the loan's account number, the amount due, the borrower's contact information, the date of payoff, and any other pertinent information. There are two types of Letter: Mortgage Payoff Request of Second Mortgage: one for a conventional loan and one for an FHA loan. For a conventional loan, the borrower would need to provide proof of the loan balance, such as a copy of the loan note or a statement from the lender. For an FHA loan, the borrower would need to provide a copy of the closing documents and the FHA case number.