Damages When a Residential Real Estate Deal Fails in Ontario

What “the deal failed” usually means

Most Ontario residential deals use a standard OREA Agreement of Purchase and Sale (Form 100) or a close cousin of it. While financing, inspection, status, or other conditions are still open, a party can often walk away under those conditions without it being a breach. Once every condition is waived or fulfilled, the deal is firm. After that, failing to close on the scheduled completion date — without a contractual excuse — is generally a breach.

This post is about what happens after that breach: who can claim money, how courts usually measure it, what happens to the deposit, and how long you have to sue. It is not about whether you can still back out before the deal is firm. For conditions and exit routes while the agreement is still conditional, see Ontario real estate conditions. For how the APS itself is built, see the Agreement of Purchase and Sale.

Casualties before closing sit under a different rule. Fire or substantial damage is usually handled by the APS insurance clause, not by a simple damages claim for walking away. That path is covered in fire or damage before closing in Ontario.

When the buyer breaches

The classic case is a buyer who cannot raise the balance of the purchase price, loses financing after waiving the condition, or simply refuses to close a firm deal. If the seller was ready, willing, and able to complete, and the buyer was not, the seller’s claim is usually for damages for breach of contract.

Ontario courts ordinarily measure the seller’s loss of bargain as the difference between the contract price and the market value of the property around the date of breach — often shown by a reasonable resale price — plus reasonable carrying costs while the seller still owns the house. Carrying costs can include items such as mortgage interest, property taxes, insurance, and utilities for the period between the failed closing and a reasonable resale. Relisting costs and legal fees thrown away on the aborted closing are often claimed as well. Exact heads of damage depend on the evidence and the agreement.

The seller has a duty to mitigate. That usually means relisting within a reasonable time and accepting a reasonable market offer. The buyer who wants to cut the claim must generally show that the seller’s mitigation was unreasonable — for example, sitting off-market for months without a good reason, or insisting on an asking price the market will not support. A Toronto real estate lawyer looking at a failed closing will pull the timeline, the listing history, and the deposit paperwork before anyone starts guessing at numbers.

The deposit: forfeiture, credit, and relief

A true deposit is security for performance. When a purchaser repudiates a firm agreement and fails to close, Ontario courts generally treat the deposit as forfeited even if the seller later resells at the same price or higher and proves no loss. That principle has been applied repeatedly, including by the Ontario Court of Appeal.

If the seller also proves damages (for example a shortfall on resale plus carrying costs), the forfeited deposit is generally credited against those damages — not kept on top of them. In Azzarello v. Shawqi, 2019 ONCA 820, the Court of Appeal held that the deposit had to be applied as a credit toward the damage award so the seller was not compensated twice for the same bargain.

Courts can grant relief from forfeiture under section 98 of the Courts of Justice Act. That relief is exceptional. A change of heart, buyer’s remorse, or an inability to complete financing after the financing condition was waived does not usually get the deposit back just because the story is sympathetic. Our guide to real estate deposits in Ontario goes deeper on trust holding, mutual releases, and when money moves.

When the seller breaches

Sometimes the seller is the one who will not or cannot close: they refuse to move, cannot clear title, or try to sell to someone else for more money. The buyer’s usual claim is also for damages — typically the difference between the contract price and the market value of the property around the breach, so the buyer is put in a position similar to having obtained the bargain.

Buyers sometimes also claim costs thrown away (legal fees, inspection, appraisal) and, where the facts support it, extra costs of buying a replacement home. Assessment of those claims is fact-specific. A rising market and a delayed repurchase can change the numbers, but only within the rules on mitigation and remoteness.

Specific performance after Semelhago

Specific performance is a court order forcing the sale to complete. For a long time, land was treated as unique almost automatically. The Supreme Court of Canada changed that approach in Semelhago v. Paramadevan, [1996] 2 S.C.R. 415. A buyer who wants specific performance generally has to show that damages are inadequate — often that the property is unique for that buyer in a way money does not fix.

For ordinary residential homes in established neighbourhoods, Ontario courts often find that damages are an adequate remedy. Specific performance is still granted in some residential cases, but it is not the default. Whether the property is unique enough is a factual question, not a slogan.

The assessment date for damages usually follows from that choice. The ordinary measure is the difference between contract price and market value at the date of breach. Trial-date assessment is generally reserved for true damages in lieu of specific performance — where the buyer was entitled to specific performance and elected damages instead. The Ontario Court of Appeal restated that distinction in Preiano v. Cirillo, 2024 ONCA 206. A later assessment date can also be appropriate where the innocent party could not reasonably re-enter the market until later, despite proper mitigation. None of that is automatic; the evidence matters.

Time is of the essence and chain closings

Most residential APS forms say time is of the essence. That means the scheduled closing date is not a soft target. Missing it without an agreed extension or a contractual excuse can crystallize a breach. Extensions happen all the time in practice, but they need to be documented — usually by amendment signed by both sides.

Chain closings raise the stakes. If your sale fails and you still have to fund a purchase the same day, you can end up in default on the purchase even though the problem started on the sale. Same-day purchase and sale and bridge financing in Ontario explain how lawyers try to keep both legs alive. When a chain collapses into a damages file, the paper trail of who was ready to close, who asked for an extension, and what funds were actually available becomes the case.

The real estate closing process still has to be followed until the deal is clearly dead. Do not treat a panicked text as a formal termination. Have your lawyer put the tender, the default notice, and any termination or reservation of rights in writing.

Limitation period

Under section 4 of the Limitations Act, 2002, a court proceeding generally must be started within two years of the day the claim was discovered. Section 5 sets out when a claim is discovered: when you knew, or ought to have known, that loss occurred, that it was caused by an act or omission, that the act or omission was the other party’s, and that a proceeding would be an appropriate way to seek a remedy.

In a failed closing, discovery is often on or very close to the missed completion date, but discoverability is still case-specific. Waiting “to see if they come around” can burn the clock. There is also a 15-year ultimate limitation period in section 15, but residential failed-deal claims are almost always fought on the two-year window. Get advice early if money is at stake.

Practical steps if your deal is falling apart

Talk to your lawyer as soon as a firm deal looks shaky — not the morning of closing. Keep every email, text, amendment, and banking document. If you are the seller, be ready to show you could close (discharge statements, keys, vacant possession plans). If you are the buyer, be ready to show financing and funds.

If the other side is in breach, your lawyer will usually want a clean paper trail: readiness to close, tender where appropriate, and a clear reservation of rights on the deposit and damages. If you are the one who cannot close, do not ghost the other side. A negotiated mutual release, an agreed extension, or a documented settlement on the deposit often costs less than a lawsuit — but only if everyone signs the right documents.

Seller disclosure and title problems can also feed a failed closing. A late-discovered defect or a title objection that was not resolved by the requisition date can land on either side of the fault line. See seller disclosure in Ontario if that is part of the story. Numbers in online articles are not your damages. Your file is.

Frequently Asked Questions (FAQ)