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Can a Landlord Refuse to Assign My Commercial Lease When I Sell in Ontario?

See how landlord consent affects assigning a commercial lease when you sell a business in Ontario, what to check in your lease, and your options.

Buying & Selling a Business4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 13, 2026
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Key takeaways
  • Whether a landlord's consent is needed, and on what terms, depends first on what your lease says.
  • Landlord consent is best treated as a condition of the sale, so raise it early.
  • If consent is refused, the right next step depends on the lease wording and the reasons given, so get legal advice before acting.

For many small businesses, the lease is the most valuable part of the deal. A buyer who cannot take over the premises may not want to buy at all. That puts the landlord in a powerful position, and sellers often worry about what happens if the landlord says no.

This article explains in general terms how to approach a lease assignment when you sell your business in Ontario. The details turn on your lease and on the law that applies to it, so a lawyer should review both before you commit to a closing date.

What an assignment is

An assignment is when a tenant transfers its interest in a lease to someone else, here the buyer of the business. The buyer then deals with the landlord as the tenant going forward. It is different from a sublease, where you stay the tenant and the new occupant deals with you.

In an asset sale, the lease does not move on its own. It has to be assigned, and that usually involves the landlord. In a share sale, the tenant company stays the same, but the lease may still say something about a change of control, so it is worth reading either way.

Start with the lease wording

Most commercial leases deal with assignment directly. Some require the landlord's written consent, some address how consent is to be given or withheld, and some say a change in ownership counts as an assignment. The answer to whether a landlord can refuse usually starts here, then continues with the law that applies to the lease. A lawyer can confirm how those two fit together for your situation.

What landlords typically look at

Landlords commonly want to know whether the buyer can pay the rent and run the business. They may ask for financial information, business experience, and sometimes a new guarantee or a larger deposit. Whether any particular request is acceptable depends on the lease and on the law, so do not assume a request is improper, or required, without advice.

Present the buyer well. A clear package, sent early, with the buyer's details and the proposed use of the premises, tends to make the process smoother and gives you a record of what was asked and when.

If the landlord refuses or delays

A refusal, or silence, does not necessarily end the matter, but your options depend on the lease and the reasons given. Ask the landlord to state its reasons in writing and keep every communication. Do not move the buyer into the premises or sign a closing that assumes consent before you understand the risk.

Possible paths include negotiating changes the landlord is concerned about, offering additional security from the buyer, restructuring the deal, or, in some cases, asking a court to decide. Each has costs and risks, and timing matters if closing is near.

What to do next

Also check the rest of your deal. For example, a sale may involve tax elections and employee issues, and those timelines should line up with the lease timeline.

Frequently asked questions

Can a landlord refuse to let a buyer take over my lease?

It depends on your lease and the law that applies to it. Many leases require consent, and whether a refusal is permitted depends on the wording and the circumstances. A lawyer can review both.

Should I ask the landlord before or after signing the sale agreement?

Ideally you deal with it as part of the sale agreement, making consent a condition so you are not committed to close without the premises. Raising it early also gives you time to respond to questions.

Can the landlord charge me for approving the assignment?

That depends on the lease. Check for clauses about costs or fees, and agree with the buyer who will bear them.

What if the landlord does not answer?

Follow up in writing and keep records. Delay can cause real trouble for a closing date, so speak with a lawyer about next steps rather than assuming silence means consent.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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