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Can I Back Out of Signing an Agreement of Purchase and Sale in Ontario?

Thinking of backing out after accepting an offer? Learn what a buyer can claim in Ontario, including damages and specific performance, and your options.

Real Estate4 min readTSLBy the Treadstone Law Team · OntarioUpdated November 1, 2026
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Key takeaways
  • A seller who refuses to close can be ordered by a court to complete the sale, called specific performance.
  • A seller who needs a spouse's consent to sell a matrimonial home is in a different position from a seller who simply has second thoughts.
  • Outcomes turn on the facts, so speak to a lawyer before you act or stop responding.

You accepted an offer and now you are having doubts, maybe because of another offer, a change in plans or a worry about where you will live. Before you say anything to the buyer, it helps to know what is at stake.

This article explains how Ontario courts approach a seller who will not close. It does not predict an outcome in your case, because the agreement's wording and your conduct matter a great deal.

Short answer: second thoughts are not a way out

Whether you can end an accepted agreement without consequences depends on its wording and on the facts, so it is worth confirming with a lawyer before you act. If a seller refuses to close, the buyer can ask a court for specific performance, which is an order forcing the sale. The sections below explain what a court looks at, and the situations that are different from simple second thoughts.

What the buyer can ask a court for

If a seller refuses to close, the buyer can ask for specific performance, which is an order forcing the sale. The court asks whether the land, rather than money, better serves justice between the parties. It weighs the nature of the property, whether damages would be an adequate remedy, and how the parties behaved. Uniqueness is only one factor.

In Dhatt v. Beer, specific performance was ordered against residential sellers who refused to close. The court upheld findings that the property had unique qualities and that damages were inadequate because the sellers lacked the funds to pay a damages award.

Why sellers and buyers are treated differently

The remedy picture is not symmetrical. When a seller sues a buyer who will not close, money damages will often be adequate, and the seller must show a fair, real and substantial justification to get specific performance. Where a buyer defaults, the seller's damages are measured as the difference between the agreed price and the later resale price. A forfeited deposit is treated as part payment of those damages. A seller must also take reasonable steps to avoid losses, though is not required to accept a lower offer from the defaulting buyer.

These rules matter to you because they show what a court looks at in a failed closing. In Dhatt, the court upheld a finding that damages were inadequate because the sellers lacked the funds to pay them, but uniqueness is only one factor and each case turns on its own facts.

Legitimate reasons a sale may not proceed

Some situations are not simply second thoughts.

Concealment is a different issue. Sellers can be liable for hiding defects. In Bowman v. Martineau, the trial judge found the sellers liable for non-disclosure and concealment of water damage.

What to do next

Limits on suing exist. A buyer generally has two years from the day the claim was discovered to sue, and a limitation period applies despite any agreement to vary it, unless a narrow business-agreement exception fits. That does not mean waiting is safe.

Frequently asked questions

Can a buyer force me to sell my house?

A buyer can ask a court for specific performance, an order forcing the sale. The court looks at the nature of the property, whether damages are adequate and how the parties behaved.

Do I lose money if I back out?

It depends on the agreement and the facts. A buyer may seek damages or an order to close, and the amount in any case turns on the evidence. A lawyer can estimate your exposure.

Can I cancel if my spouse didn't sign?

If it is a matrimonial home, a sale generally needs your spouse's consent or one of the other listed routes. If consent is unreasonably withheld, a court may authorize the sale. Get advice quickly.

How long does a buyer have to sue?

Generally two years from the day the claim was discovered. There is also an ultimate limit of 15 years from the act or omission, with exceptions such as wilful concealment.

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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