Family Opportunity Mortgage: Requirements and How It Works

Fannie Mae's occupancy table (B2-1.1-01) counts the home you buy for your parent or disabled adult child as an owner-occupied primary home. This is the only place you will find the "family opportunity mortgage" rule in the Fannie Mae Selling Guide. The loan is considered a conventional loan for a purchase or refinance as a primary residence.

Fannie Mae's eligibility criteria

• Your parent, or your disabled adult child, is unable to work or has insufficient income to qualify for a mortgage on their own.
• No age test applies. The guideline says parents, not elderly parents.
• Income for both housing payments needs to show a DTI that can go up to 50% with a Fannie Mae Approve/Eligible finding (check yours). If it's a manual underwrite, DTI can be 36% and up to 45%.
• Since November 16, 2025, Fannie Mae has no minimum credit score for Desktop Underwriter loans. However, manual underwrites need a credit score no lower than 620, or 640 for an ARM.

In Fannie Mae's guideline, unlike the second home rule, there is no specific list of documents to prove that a parent can't qualify and no distance limit. Lenders will have to decide what proof to ask for, such as a Social Security award letter, SSA-1099, pension statement, or a signed letter of explanation.

How Freddie Mac's version differs

In Freddie Mac's Guide section 4201.11, the home is considered a primary residence when a parent lives in the home. Parents and legal guardians can also buy for a disabled child, and Freddie Mac does not require the child to be an adult. If parents receive pensions or Social Security, Freddie Mac does not explicitly require proving their income is insufficient to cover the mortgage by itself.

The answer is yes, compared to a second home or rental property. It prices like your primary residence and you need less cash down.

When viewing a Loan Estimate, that occupancy adjustment will show up in the interest rate and APR or as discount points in the closing costs (compare monthly payments). On a $350,000 loan, avoiding that hit saves $11,812 in upfront points.

The pros to the family opportunity mortgage are that your parent does not have to sign the note, and you get smaller down payments and lower rates. The con is the tax rules, though you can still use the mortgage interest deduction for an IRS second home if a family member lives there and the home is not rented out (IRS Publication 936; see homeowner tax deductions). If you sell the home later, the capital gains home sale exclusion does not apply because it was not your own main home.

Social Security retirement benefits and SSDI are not touched, though SSI can cut the monthly check by up to $351.33 in 2026 if the recipient is living there rent-free. The Social Security Administration counts free shelter as in-kind support and maintenance.

FHA loans are different; at least one borrower will need to move in within 60 days (HUD Handbook 4000.1). For an FHA loan, your parent is the occupying borrower and you join as a non-occupying co-borrower. The LTV can go up to 96.5% (3.5% down) with a family member on a one-unit home, and FHA counts a parent's Social Security income toward qualifying.

With a VA loan, there is no parent occupancy option. The veteran has to live in the home, and only a spouse or a dependent child of an active-duty service member can occupy in their place (38 U.S.C. 3704(c)).

Parents in Texas will not be able to claim the homestead exemption if only your name is on the deed. To qualify for the Texas homestead exemption, the property owner must live in the home as their principal residence (Texas Tax Code 11.13).

That matters because Texas school exemptions take $140,000 off the assessed value, plus an extra $60,000 for homeowners over 65 or with a disability, along with the school tax freeze and the 10% annual appraisal cap. If a parent is on title with you and lives in the home, they can claim a partial homestead exemption equal to their ownership share (Texas Tax Code 11.41).

Texas down payment assistance won't help either, since TDHCA and TSAHC program rules require the buyer on the loan to live in the home, as does San Antonio's HIP program.