The Big Question
What Happens to the Lease When You Buy a Business
The Short Answer
Almost every small business you can buy operates out of premises it does not own, and the right to be there belongs to a document the seller signed with somebody who is not at your table. Buying the business does not buy you that document. In most cases the landlord has to agree to hand it over, and until they do you have bought a company that may not be able to open on Monday.
That is the whole of it, and it is why a lease turns up in the story of so many dead deals. The landlord is rarely trying to stop the sale. They are a third party with no deadline, an interest in their own risk, and a lawyer who bills by the hour, and a purchase agreement with a closing date does not oblige any of them to hurry.
Assigned the Old Lease, or Signing a New One
There are two ways you end up with the premises and they are not the same deal. Assignment hands you the seller's existing lease as written: the rent, the term, the renewal options and the obligations all come across unchanged, and the seller usually stays on the hook behind you unless they are released. A NEW lease is a negotiation, which means the rent is whatever the landlord thinks the space is worth today rather than what the seller agreed years ago.
Read which one you are getting before you argue about anything else, because a below-market lease with years to run is part of what you are paying for and a new lease at today's rent quietly deletes it. Where the lease IS most of the value, as it is for a restaurant with a long term in a good location, that reading changes the price rather than the paperwork. The assignment and assumption agreement is the document that moves it, and an estoppel certificate is how the landlord states, in writing, what the lease actually says and whether anybody is in breach of it. Ask for one. A seller's summary of their own lease is not evidence, and being told after closing that you are in breach of a lease nobody showed you is a discovery the estoppel would have made while you could still act on it.
What the Landlord Will Want
A landlord consenting to an assignment is agreeing to swap a tenant they know for one they do not, so the questions are about you. Expect to hand over what a lender already asks for: personal financials, a resume, what you intend to do with the space, and often a personal guarantee. Expect the deposit to be reset, and expect a consent fee and the landlord's legal costs to land on your side of the table. Some leases spell all of this out in a clause the seller has never re-read; some say only that consent will not be unreasonably withheld, which is a sentence lawyers argue about.
A lender is the second party with a view on it. Financing a business that operates from premises means financing something that can be locked out, so a bank will want to know the premises are secure for long enough to matter, and may ask the landlord for a landlord waiver over the equipment inside. That is a third signature on a document nobody has drafted yet, which is the real reason this item is dangerous. The loan file page lists the rest of what the file will ask for.
It Runs Out of Time Rather Than Getting Refused
The failure mode is almost never a landlord saying no. It is a landlord saying nothing for six weeks while your exclusivity expires, your rate lock moves, and the seller starts wondering whether you are serious. Start it the day you sign the letter of intent, before diligence, because it is the only item in the deal whose clock belongs to somebody with no reason to watch it. The landlord introduction is written for that first contact, and the diligence checklist tracks the lease alongside everything else you are waiting on.
Two things to establish in the first conversation, because both change what you should do next: whether the landlord has consented to an assignment before, and whether the seller is behind on anything. A landlord who has done this twice is a scheduling problem. A landlord who has never done it, or who is owed money, is a deal risk, and what a dead deal costs you is worth knowing before you spend on diligence rather than after.
When the Premises Are the Business
Some purchases are mostly a lease with a company attached: a restaurant, a shop, a gym, a car wash. There, the lease term is the asset's life. A business with three years left and no renewal option is worth less than the same business with fifteen, whatever the earnings say, because the buyer after you inherits the same clock. Price it that way in the underwrite, and check the trade's own buy guide, which says what the premises are worth in that business specifically.
And if the seller owns the building, the lease question becomes a different one entirely. You are either buying the property too or signing a lease with the person you just bought the business from, and both of those belong in the price rather than in the appendix. A sale leaseback is the name for the second one.
Whether to Buy the Building Too
The fork above is where most buyers stop, so here is the way through it. Start with the rent the seller was paying themselves, because that number is the hinge and it is usually not a market number. A seller who charged their own company a low rent has flattered the earnings you are pricing off, and one who charged a high rent has buried them. Restate the earnings at what the space would actually let for before you argue about anything else, which is what related-party rent exists to catch.
Then treat them as two purchases, because they are. The building is financed differently and usually better: a 504 carries property at a fixed rate over a long term while the 7(a) covers the business and goodwill, which lowers the blended rate and leaves 7(a) capacity for the thing that actually earns. It also takes its own equity, so the cash you put down goes further on one asset than on two.
The case for owning is that the rent stops being somebody else's decision, which matters most in the trades where moving is the same as closing. The case against is that you have bought a second business with a different holding period: repairs, taxes, insurance and, on the day you sell the company, a buyer who may not want the building and a vacancy that is now yours. If that is the shape you want, a sale leaseback is the other way to get it, with the seller keeping the property and you keeping the rent line you can plan around.
Run both versions before you decide. Price the business on restated rent in the underwrite, then run it again with the mortgage in place of the rent, and compare what you are left with each way rather than which total looks smaller.