You live in one unit
The buyer occupies one unit as a primary residence and rents the other units. That changes the first screening question from pure investor cash flow to estimated owner monthly cost.
Owner-Occupant Small Multifamily Screening
House hacking duplexes, triplexes, and fourplexes
Screen small multifamily listings where rent from the other units may help reduce your monthly housing cost while you live in one unit.
Updated Jun 21, 2026. This page is educational and directional, not financing, legal, tax, or underwriting advice.
The Owner-Occupant Lens
What house hacking changes
Other-unit rent offsets cost
Rent from the units you do not occupy may help offset mortgage, taxes, insurance, HOA, repairs, vacancy, and reserves.
The later scenario can improve
Some buyers later move out and rent the prior owner unit after meeting loan and occupancy requirements. Verify the terms before relying on that plan.
Screening Math
The number to watch is owner monthly cost
A house-hack view should estimate monthly cost after rent from the non-owner units. That is different from the all-units-rented cash-flow view investors use.
Year 1
Owner monthly cost
Modeled monthly cost minus estimated rent from the units you do not occupy.
Later
Full-rental scenario
Estimated rent from all units minus modeled monthly cost after the prior owner unit becomes a rental.
Before You Offer
What to verify on a house-hack candidate
Current leases and rent roll
Ask for actual leases, rent amounts, deposits, concessions, and occupancy status.
Local rent confidence
Compare active rentals, recent leased comps, and a local property manager or leasing-agent view.
Financing treatment
Ask a lender how rental income, occupancy, reserves, mortgage insurance, and program rules apply to your situation.
Owner unit choice
Confirm which unit you would occupy and whether that changes the rent you can rely on.
Operating costs
Verify taxes, insurance, HOA, utilities, repairs, vacancy, and reserves before trusting any offset estimate.
Move-out plan
If you plan to rent the owner unit later, confirm your loan and occupancy obligations before treating it as a repeatable strategy.
Start Screening
Browse duplex, triplex, and fourplex listings
Start with current small multifamily listings, then verify the rent and financing assumptions before making decisions.