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 gift letter is an important, formal, legal piece of documentation that can help explain that a (usually rather large) sum of money was gifted to you.A mortgage gift letter is a statement that assures your lender the money that came into your account is a gift and not a loan. Your parents will need to file the proper forms with IRS declaring the gift. So no potential consequences of gift tax. If the money was gifted to both of you, then the answer is simple. The money is a marital asset and will be divided equitably in the divorce. Medicaid requires that all Medicaid applicants account for all gifts and transfers made in the five years prior to applying for Institutional Medicaid. A signed gift letter from her parents. 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.