House hacking in Florida means buying an owner-occupied home (usually a duplex, triplex, fourplex, or a single-family with a legal ADU or rented bedrooms) and using tenant rent to help cover the mortgage. FHA allows 3.5% down on 1-4 unit properties at a 580+ FICO, and Fannie Mae lets lenders credit up to 75% of appraiser-supported market rent toward qualifying income.
The FHA self-sufficiency worksheet is the one-page document that decides whether a 3-unit or 4-unit FHA file gets the 3.5% down path or has to underwrite as conventional or investment with a much larger down payment. Projected rent on the rentable units, minus a 25% vacancy factor, has to cover the full PITI. The First Rental Property Florida guide walks through the same decision tree.
House hacking is a financing structure, not a side hustle: owner-occupied loan programs apply, so the down payment, qualifying file, and approval mechanics look more like a first home than an investment file.
Three Strategies That Qualify in Florida
Three labeled paths apply in Broward County, each under different qualifying rules. The Multifamily Financing overview is a useful starting point before touring.
Strategy 1: Owner-Occupied 2-4 Unit (FHA, VA, or Conventional)
Buy a duplex, triplex, or fourplex and live in one unit while renting the others. Up to 75% of appraiser-supported market rent on the non-occupied units may count toward qualifying income.
Strategy 2: Single-Family With a Legal ADU
Buy a single-family home with a permitted accessory dwelling unit and rent the ADU. Rental income may qualify when the unit is legal, separately metered or clearly documented, and supported by a lease or appraiser market-rent comps.
Strategy 3: HomeReady Boarder Income
Buy a 1-unit primary and rent individual bedrooms. Standard conventional and FHA files generally cannot count roommate rent, but HomeReady allows up to 30% of qualifying income from a boarder with a 12-month documented history.
Program Parameters That Shape Your House Hack
Program parameters in HUD and Fannie Mae documentation:
- FHA: 3.5% minimum down at 580+ FICO on 1-4 unit owner-occupied; 60-day occupancy after closing and 12-month residency rule (HUD Handbook 4000.1 §II.A.3).
- FHA self-sufficiency test on 3-4 unit properties: the projected rent on the rentable units must cover the full PITI (HUD Handbook 4000.1).
- Conventional: 5% minimum down on 2-unit owner-occupied; 15-25% down on 3-4 unit owner-occupied (Fannie Mae Selling Guide B2-1.5).
- VA: 0% down on 2-4 unit when the eligible borrower occupies one unit as primary residence.
- Rental income credit: up to 75% of appraiser-supported market rent on Form 1007 (single) or Form 1025 (2-4 unit) may count toward qualifying income.
- HomeReady boarder income: up to 30% of qualifying income on a 1-unit primary, with a 12-month documented history.
You can layer those rules with the FHA Loans Florida overview if FHA is the likely path.
How the Rent Credit Changes Your Qualifying Picture
A duplex with $2,200 in market rent on the non-owner unit produces roughly $1,650 in qualifying income after the 75% factor. That number lowers the buyer’s effective DTI and often expands the price range. Using Rental Income to Qualify explains how appraisers, leases, and Schedule E history interact when underwriting reviews the file. ADU income on a single-family follows the same logic, but the unit must be legal and separately metered.
Where House Hacking Inventory Actually Sits in Broward
Newer Plantation and Cooper City subdivisions are HOA-heavy and lean single-family, so house hacking there usually means a permitted ADU or HomeReady boarder rent on a 1-unit, not a duplex. Sunrise, Hollywood FL, and Fort Lauderdale carry most of the 2–4 unit inventory at owner-occupied price points. Confirm the property’s legal use with the city before writing an offer; an “in-law suite” without permits will not qualify as a rentable unit on the appraisal.
Frequently Asked Questions
Can I really buy a duplex with 3.5% down in Florida?
Yes, on an owner-occupied 1–4 unit at 580+ FICO; 3–4 unit FHA files must pass the self-sufficiency test (HUD Handbook 4000.1).
Does rent from the other unit count as my income?
Generally yes, up to 75% of appraiser-supported market rent on Fannie Mae Form 1007 or Form 1025.
Can roommate rent count toward qualifying income?
Usually no on a standard file; HomeReady allows up to 30% boarder income on a 1-unit with 12 months of documented history.
Can I house hack with no money down?
For eligible VA borrowers, yes, VA allows 0% down on a 2–4 unit owner-occupied primary, subject to entitlement and occupancy rules.
How long must I live in a house-hack property?
FHA requires a 12-month primary residency; after that, the property can be retained as a rental.
What is the FHA self-sufficiency test, exactly?
On 3–4 unit FHA files, projected rent on the rentable units must cover the full PITI after a 25% vacancy factor; if it does not, the file cannot close as an FHA 3.5%-down primary.
Does an “in-law suite” count as a legal ADU?
Only if it is permitted; an unpermitted ADU does not qualify as a rentable unit on the appraisal, even when the appraiser sees it.
Final Thoughts
House hacking is a financing structure on owner-occupied terms; the math depends on property type, appraiser-supported rent, and program-specific credit rules.
Three moves this week if a house hack is on the table:
- Decide between a 2–4 unit primary and a single-family with a permitted ADU before touring; the price ranges and qualifying mechanics diverge.
- Pull the FHA self-sufficiency worksheet on any 3–4 unit candidate before going under contract.
- Confirm the property’s legal use with the city, whether the unit is a permitted ADU or not. An unpermitted “in-law suite” will not qualify as a rentable unit on the appraisal.