One unit can hold up an entire sale
Retail buyers need every unit to behave. Access for the appraiser, estoppel paperwork that reads cleanly, rent that shows up in a bank statement. A multi-family property with one uncooperative tenant cannot deliver that, which is why the financed buyer pool for these houses is far smaller than owners expect.
That constraint does not apply to us. We take the multi-family with the tenants it has, and whatever the difficult unit turns into afterward is our time and our expense.

When the paperwork does not match the building
Long Island is full of houses that became two-family houses at some point without the paperwork ever following. A finished basement with its own entrance. A mother-daughter setup rented for decades. An attic apartment somebody built a long time ago.
It matters at sale time because a lender and a title company look at what the municipality has on record, not at what is actually there. That is where retail multi-family deals stall. We buy these houses knowingly, and an unpermitted conversion is a condition we price rather than a reason to walk.
Why local knowledge changes the number
A house on Orchard Drive. A house on Gail Court. A house on Ashwood Court. All of them in Northport, all bought by us.
Northport is roughly 7,347 people in Suffolk County, ZIP 11768, and the housing stock is mostly victorian, colonial, cape cod. Around Main Street and Northport Harbor, most of it is old enough that the mechanicals are on their second or third life. The Northport stop pulls buyers who commute, which supports the good houses and does very little for the ones that need a roof. We know which of these streets take water, where the older systems fail first, and what the Northport-East Northport Union Free School District does to a resale price.
Rent rolls, mixed units and the real numbers
Multi-family owners often delay calling because the paperwork is a mess. Leases that ran out years ago, rent taken in cash, a relative in one unit paying something informal, a deposit that was spent long before anybody thought about selling.
None of that disqualifies the house. What is worth telling us at the start is anything a court has already been asked to decide about a tenant, because that affects sequencing and we would rather know now than at the closing table.
Working through Suffolk County multi-family sales
We have been buying multi-family property across Nassau and Suffolk for 15 years, and the things that frighten a retail buyer off are the things we handle routinely. A unit nobody has been inside for two years. A conversion that was never permitted. Two paying tenants and one who stopped.
We bring in the landlord-tenant attorneys and the expediters we have used for years when a situation needs them, and we do that whether or not we end up buying the building. Tell us where the multi-family stands and we will tell you what your real options are.
What the two paths cost in Northport
These are the two routes open to you with a multi-family property, priced against what Northport houses actually sell for.
Work it against Northport's own numbers. The median sale here is $950,000. A 5% commission on that is $47,500, and seller closing costs of about 2% add roughly $19,000. Those are costs we can cover on our side. That is $66,500 gone before anyone counts the repairs it took to get the house listable.
There are two waits in a listed sale and people usually only count the first. In Northport the median house takes about 34 days to go from listed to a signed contract. Then it waits again, typically 45 to 60 days, while the buyer's lender orders an appraisal and underwrites the loan. Call it 79 to 94 days from sign to keys, assuming nothing goes wrong.
The part worth understanding is what a signed contract actually guarantees, which is less than most sellers assume. A retail buyer with a mortgage contingency can walk away right up to the end. If they do not qualify, if the appraisal comes in under the price, if they change their mind and let the financing lapse. A share of deals die exactly there, after months of waiting, and the house goes back on the market with time on it. We are not borrowing anything, so there is no lender to satisfy, no appraisal to come in low and no contingency to exercise.
| Listing with an agent | Selling to us | |
|---|---|---|
| Sale price | $950,000 (Northport median) | Our written offer |
| Commission | −$47,500 | None |
| Seller closing costs | −$19,000 | We can cover them |
| Repairs before listing | Out of pocket | None |
| Cleanout | Yours | Ours |
| Showings | Until it sells | One visit |
| Listed to signed contract | 34 days (Northport median, once listable) | 24 hours to a written offer |
| Contract to closing | 45 to 60 days (waiting on the buyer's lender) | A date you choose |
| Total wait | 79 to 94 days if nothing falls through | Yours to set |
| Can the buyer walk? | Yes (mortgage contingency runs to the end) | No financing to fall through |
| Before repairs and carrying | $883,500 | The number we put in writing |
The agent column uses a 5% commission and about 2% of seller closing costs, which are typical rather than fixed. It leaves out repairs and holding costs because no two houses are alike there. Where a house is in good condition, listing with a capable agent can beat our number, and we will be upfront if that is the case.
The condition of a Northport multi-family property
The units you cannot get into are the ones owners worry about most, understandably. A tenant who has been there fifteen years may have done things to a unit that nobody has seen in a long time.
We price unseen units conservatively rather than refusing to make an offer, and we say clearly which parts of the multi-family we have assumed rather than inspected. You will know exactly what the number rests on.
What you do not pay when you sell a multi-family property
Every line below is a cost of listing a multi-family property the retail way that simply does not arise here.
- Agent commission
- $47,500 at 5% of the Northport median none
- Seller closing costs
- About $19,000 on a $950,000 sale. We can cover these. none
- Repairs to make it listable
- Everything a buyer would flag, paid for before you list none
- Cleanout and removal
- Charged by the truckload, and done before the first showing none
- Carrying costs while it waits
- Taxes, insurance and utilities while you spend 79 to 94 days finding a buyer and waiting for their loan none
When listing the building is the better move
The median house in Northport sold for $950,000 and took about 34 days to go under contract, then another 45 to 60 days waiting on the buyer's mortgage. That is 79 to 94 days in total, for a house that was ready to show on day one. Those timelines assume a house that shows well from day one and a single buyer's lender with a single set of questions. A multi-family adds an appraiser who wants every unit, a lender who wants documented rents, and a title company that wants the records to match the building.
When all of that is clean, listing frequently nets more, and we will tell you so.
Common questions
Do you buy two-family and three-family houses in Northport?
We do, and multi-family is some of our most common work on Long Island. Tell us how many units there are and what is going on in each one and we will take it from there.
The conversion was never permitted. Can you still buy it?
That is a condition we price, not a reason to walk away. It does matter to a buyer with a mortgage and to a title company, which is usually why these multi-family houses struggle on the open market and not with us.
One unit pays and one does not. Does that kill the deal?
No. A mixed multi-family is ordinary. Give us the real rent roll and we price the paying units on what they collect and the rest on what the situation actually is.
Can you make an offer if a tenant will not let you in?
Yes. We work from whatever access you can reasonably give us, price the unseen units conservatively, and tell you plainly which parts of the building we assumed rather than inspected.
What happens to the leases and the deposits?
They come with the house. If a deposit was spent or was never formally held, say so early and we will work it into the numbers rather than discover it late.