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. A signed gift letter from her parents.A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources. Your parents will need to file the proper forms with IRS declaring the gift. So no potential consequences of gift tax. Here's a sample gift letter you can use to prove that the money is truly meant as an outright gift, with no expectation of repayment. Yes, all lenders will require a gift letter. Although you may have the funds, the lender needs to confirm that you won't have to repay the gift. From obtaining gift funds to filling out a gift letter, everything you need to know about mortgage gifts for a home purchase in Florida. If not, write an agreement and make monthly payments.