Most people are told there are two choices: buy a house, or buy an investment property. There is a third, and it is the one that gets overlooked — buy a building with two to four units, live in one, and rent the rest. Your tenants help carry the loan. You are an owner-occupant, so you finance it like a home rather than like an investment.
I did not do this, and I wish I had
When I was starting out, nobody sat me down and explained that this was even an option. I did not miss it because someone steered me wrong. I missed it because I did not know to ask.
What I would tell a younger version of myself is this. Start here. Buy the small building first instead of the starter house. Live in one unit, let the other units carry most of what you would otherwise have paid in rent, and put the difference to work. Do it again when you are ready. By the time you want the house with the yard and the family in it, the buildings you already own are covering a meaningful share of what that house costs.
That is not a promise and it is not quick. It is simply the path I would take if I were starting over — and it is why I pay close attention to this particular kind of purchase, and why I would rather a first-time buyer hear about it from someone than find out about it twenty years late.
The thing almost nobody tells you first
A duplex and a fourplex are not the same purchase. They are not even the same financing animal.
Everyone assumes bigger is better, because more units means more rent. On paper that is true. In underwriting it is often backwards — and this is the single most common reason a first owner-occupied deal falls apart in the last two weeks.
Here is the rule that causes it.
FHA, 3.5% down, and the self-sufficiency test
FHA will finance an owner-occupied two-, three- or four-unit property at 3.5% down. You have to actually live there — it is not a route to a pure rental.
But for three- and four-unit properties, FHA adds a test that does not apply to duplexes at all.
The appraiser estimates fair market rent for every unit in the building — including the one you are going to live in. 75% of that total is compared to the monthly payment, taxes and insurance. The rent has to cover the payment. If it does not, the property fails and the loan does not happen.
Three things follow, and they are the whole reason to have someone who knows this before you write an offer:
- A duplex is exempt. The test simply does not apply. You can still count 75% of the other unit's rent toward qualifying — you just do not have to clear the hurdle.
- A fourplex can be a perfectly good building and still fail, purely because rents in its area are soft relative to its price. The building is not the problem. The arithmetic is.
- The 75% is not a haircut someone invented to be difficult. It is the vacancy-and-maintenance allowance. Plan your own numbers at 75%, not 100%, and you will not be surprised twice.
The conventional route, 5% down, and no test
Conventional financing will also do an owner-occupied two-to-four unit, at 5% down — and it does not impose the self-sufficiency test.
So the counterintuitive answer is that the loan with the larger down payment is sometimes the only one that will close on a fourplex. Five percent of a passing deal beats three and a half percent of a deal that dies at underwriting.
Which route fits depends on the building, the rents, your credit and your cash — and it should be settled before you write, not after. That is a conversation with a lender, and I will put you in front of one who actually does these.
Where my lane ends and your lender's begins
The financing rules on this page are published program requirements from HUD and Fannie Mae, and I keep them current. They are not a quote, and I am not a lender.
What your lender does, and I cannot: tell you the rate you will actually get, what your payment will be, which program fits your income and credit, and whether you qualify. Those are their decisions and their expertise, and their advice should carry more weight than mine on every one of them.
What I do: know these rules well enough to spot the building that will fail underwriting before you write the offer — and put you in front of a lender who actually does these loans.
Financing rules on this page verified against HUD and Fannie Mae guidance in October 2026. Programs change. Confirm anything here with your lender before you rely on it.
What the other units realistically carry
Count on 75% of market rent, not all of it. That is what the lender does and it is what a careful owner does.
What is left over after the payment is not profit. Before you call anything cash flow, take out vacancy, turnover, maintenance, the repair you did not plan, and your own time answering the phone at nine on a Sunday. The honest version of this strategy is that the tenants carry a large share of your housing cost — not that you live free and collect a check.
That is still an extraordinary outcome. It is just not the one the internet promises.
Being a landlord on day one
You will not just own a building. You will inherit tenants, leases, deposits and whatever arrangements the last owner made — some of which will be verbal.
Things to know before you close, not after:
- Who is in each unit, and on what lease
- What rent they actually pay, versus what the listing claims
- Who holds the security deposits, and how they transfer
- Which utilities are on which meter
- Whether anyone is behind
Leases survive the sale. You are buying the agreements along with the walls.
How representation works in South Dakota
REAL Solutions LLC represents buyers. I do not take listings.
That is a deliberate choice, and it has two consequences worth knowing.
The first is that there is no scenario in which the property you want is also mine to sell. No divided loyalty, and no in-house inventory I am quietly steering you toward.
The second is the part people do not expect. Because I am not competing for listings, I am free to know the agents who are best at them rather than treat them as rivals. So when the day comes that you need to sell — or you need a listing agent in a market I do not work — you get the same person I would use myself. My clients have access to that network for as long as they are my clients, and it costs them nothing to ask.
Two relationships are available here, and they are different:
- Single agency — I represent you, and only you, with full loyalty.
- Transaction brokerage — I facilitate the transaction without representing either side as an advocate.
We do not offer limited agency. You will have this explained properly and in writing before anything is signed, because the difference matters most at the moment it is tested.
Where this works around Sioux Falls
Sioux Falls and roughly thirty miles out — including Harrisburg, Tea, Brandon, Dell Rapids, Canton, Lennox, Hartford, Garretson, Crooks, Baltic and Valley Springs.
Two-to-four unit stock is not spread evenly across those places, and the ones where the rent-to-price arithmetic actually clears the FHA test are not always the ones people expect. That is worth a conversation rather than a map.
Questions people actually ask
Can I do this as a first-time buyer?
Yes. Owner-occupied two-to-four unit financing is available to first-time buyers, and the down payment requirements are the same ones above. Being new is not the obstacle — the property's arithmetic usually is.
How long do I have to live there?
Owner-occupancy is a real requirement with a real term, and your lender will state it on your loan. Plan to live there, because the loan is written on the understanding that you will.
What if the rent does not cover the payment?
On a duplex, that can still work — you are comparing it to what you would have paid in rent anyway. On a three or four unit under FHA, it is not a judgment call: the loan fails the test. Which is exactly why the test gets run before the offer.
Do I need to be handy?
No, but you need a plan for who is. Build the relationship with a plumber and an electrician before you need one at midnight.
Is this a good time?
The better question is whether you are ready, and whether a specific building's numbers work. Timing the market is a hobby. Running the numbers on a real address is the job.
Start with a call
A short call, no cost, no pressure. Tell me what you are trying to do and I will tell you plainly whether this route fits — including if the answer is not yet.
Not ready for the loan mechanics yet? Start with the plain-language version for renters.
