The letter must explain who is gifting the money, where the donor's funds are coming from and the relationship between the donor and the recipient. The purpose of this letter is to document that the money does not need to be repaid as well as the donor's name, contract information, and relationship to you.All gifts must be paper-trailed and digitally documented with cancelled checks and bank statements. From obtaining gift funds to filling out a gift letter, everything you need to know about mortgage gifts for a home purchase in Florida. The gift letter provides assurance to the lender that the down payment is not a loan or a form of undisclosed debt. A gift letter for a mortgage shows your lender that you don't need to repay gift money toward your down payment. Use our mortgage gift letter The HFA of MiamiDade County has authorized the issuance of Mortgage Credit Certificates (MCCs) a federal income tax credit. Your lender will ask the giver of the money to write a letter stating that the funds are a gift to you to help you buy your home. A gift letter for a mortgage shows your lender that you don't need to repay gift money toward your down payment.