When an Ontario Deal Fails to Close: Buyer and Seller Default, and the Remedies
"Just walk away and lose the deposit" is a dangerous myth — in a falling market, a seller can also sue you for the resale shortfall, often several times the deposit.
In Ontario, if a firm (unconditional) deal fails to close, what happens when the buyer or seller defaults?
A firm (unconditional) Agreement of Purchase and Sale is a legally binding contract, and not completing on closing day is a breach. When a buyer defaults, the seller is generally entitled to keep the deposit — but under Ontario case law (e.g. Azzarello v. Shawqi, 2019 ONCA 820), forfeiture is not automatic: the deposit is held in trust by the brokerage and can only be released on a mutual release signed by both parties or a court order (RECO/TRESA rules). If the seller later resells for less, they can also sue for the shortfall plus carrying costs. When the seller defaults (won’t close, can’t deliver clear title), the buyer can seek specific performance or damages. This is education, not legal advice.
Source: Ontario Court of Appeal, Azzarello v. Shawqi (2019 ONCA 820, canlii.org) / RECO (reco.on.ca, TRESA trust rules, 2026)
I’m Arthur Zhao. In my years brokering in the GTA, the line that worries me most — and the one clients underestimate most — is “I’ll just lose the deposit and walk.” Let me be blunt: under a firm (unconditional) contract, in a falling market that can be a very expensive misconception. Once a deal goes firm it’s a binding contract; whoever fails to close on closing day is exposed to far more than the deposit. Here I’ll map both sides — buyer default and seller default — and the remedies: when the deposit holds, when you can be chased for a shortfall, and what you can do if the seller won’t close. If a deal actually collapses, the first move is a real estate litigator; this article just shows you the risk map.
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First, what a "firm deal" actually means
In Ontario, a firm (unconditional) Agreement of Purchase and Sale (APS) is a legally binding contract — every condition (financing, inspection, etc.) has been satisfied or was never included, and all that’s left is to complete on closing day. That’s very different from a conditional offer that still has live conditions: during the condition period you can usually walk within the terms and recover your deposit. But once the conditions are waived and the deal is firm, failing to close is a breach (repudiation). In other words, after a deal goes firm, a collapsed closing is no longer a question of “do I want to buy?” — it’s “how large is the cost of defaulting?” That’s exactly where many buyers misjudge the stakes.
🚨“Just walk away and lose the deposit” is a dangerous myth under a firm contract. The deposit is only the first layer of loss — if the seller resells for less, you can be pursued for the gap between the contract price and the resale price, plus carrying costs, which can run to several times the deposit.
Buyer default: the deposit is forfeited — but that is not the end of it
The deposit doesn’t land in the seller’s hands automatically
• A mutual release signed by both buyer and seller (often the OREA standard form) — the fastest path, doable in days;
• A court order deciding who is entitled to the deposit.
If the buyer refuses to sign a mutual release (say, insisting the deposit come back), the seller may be forced into litigation — and per industry guidance, a court order can take six months or longer and cost thousands in legal fees. So “the seller will get the deposit” is the right direction; “the seller gets it on closing day” is the myth.
⚠️The deposit does not pass to the seller automatically on the day of default. It’s held in trust by the brokerage and can only be released on a mutual release signed by both parties or a court order; a court route can take six months or more and cost thousands (per industry guidance).
The real weapon in a falling market: suing for the resale shortfall
The deposit is credited against damages — no double recovery
One technical detail actually protects the buyer a little. In Azzarello v. Shawqi (2019 ONCA 820), the Ontario Court of Appeal made clear that a forfeited deposit must be applied (credited) against the damages the seller claims — the seller cannot both keep the deposit and separately recover the full loss on the same shortfall (no double recovery). In that case the price was about $1.55M, the deposit $75,000, and the market drop roughly $275,000. The practical meaning: the seller’s total recovery is essentially “shortfall + carrying costs and other losses,” with the deposit forming part of that number, not stacked on top. It won’t get you off the hook, but it governs how the damages are calculated.
The seller has a duty too: mitigate reasonably
Flip side: when the seller defaults, the buyer’s remedies
• Specific performance — asking the court to order the seller to complete the sale on the original terms. Courts generally grant this only where the property is genuinely unique; for a fungible investment property, they tend to award damages instead.
• Terminate and claim damages — recover the deposit and reasonable expenses, and claim losses such as the cost of buying a comparable replacement home.
If the seller can’t deliver clear title, the buyer is generally entitled to terminate and recover the deposit plus reasonable expenses.
ℹ️Whether you’re pursuing a shortfall or a defaulting seller, an Ontario contract claim generally carries a two-year limitation period (from when the claim was or should have been discovered). After a failed closing, get counsel to lock down evidence early — don’t let the window lapse.
Don’t miss the clock: the two-year limitation period
Whether you’re a buyer being chased for a shortfall or a buyer pursuing a defaulting seller, watch the limitation period. Under Ontario’s limitations regime, a contract claim generally must be started within two years of the day the claim was discovered or ought to have been discovered (per law-firm summaries of Ontario’s two-year limitation). Practically, that means: after a failed closing, don’t wait. A deposit stuck in trust, the other side refusing a mutual release, or a plan to pursue the shortfall or specific performance — each of these has a clock running. The sooner you get a lawyer to lock down the evidence (the closing correspondence, resale records, market data), the stronger your position.
💡 A firm deal isn’t a “do I want to buy?” choice — it’s a “how much does defaulting cost?” calculation: the deposit is only the first layer, and in a falling market the resale shortfall is the real exposure.
If it actually goes wrong: get a real estate litigator first
• Call your real estate lawyer right away, and get referred to a litigator if needed — the choices around deposit, shortfall, and specific performance all need professional judgment.
• Preserve every record: the APS, condition waivers, any financing decline letter, closing emails, and the later resale listing and sale price.
• Don’t casually sign a mutual release — and don’t refuse one out of spite; either move changes your legal position, so ask counsel first.
• Watch the two-year limitation and don’t let it lapse.
This article is education, not legal advice; every deal’s wording and facts differ — rely on your real estate litigator and current law.
Ontario Home Buying Guide →Closing Costs in Ontario →The Ontario Selling Blueprint →
Frequently Asked Questions
When a buyer defaults, does the seller get to keep the deposit that same day?
No. Under RECO’s rules within TRESA, the deposit is held in trust by the brokerage, which must stay neutral and can only release it on a mutual release signed by both parties or a court order. If the buyer refuses to sign a mutual release, the seller may have to litigate — and per industry guidance, a court order can take six months or more and cost thousands in legal fees. So the seller being “entitled” to the deposit is correct; getting it “on closing day” is the myth.
I’m a buyer walking away from a firm deal — is my worst case just losing the deposit?
No. Under the direction of Ontario case law (e.g. Azzarello v. Shawqi, 2019 ONCA 820), the seller can forfeit the deposit and also sue for actual loss — centred on the gap between the contract price and the resale price, plus carrying costs like mortgage interest and property taxes, and re-listing/legal fees. In one reported case a buyer lost a $60,000 deposit and was ordered to pay about $300,000 more in shortfall (Albrechtsen v. Panaich). The deposit is the first layer of exposure, not the ceiling.
Can the seller keep my deposit and also collect full damages on top?
No. In Azzarello v. Shawqi (2019 ONCA 820), the Ontario Court of Appeal held that a forfeited deposit must be credited against the damages the seller claims — the seller cannot both keep the deposit and separately recover the full loss on the same shortfall (no double recovery). So the seller’s total recovery is essentially “shortfall plus carrying costs and other losses,” with the deposit forming part of that figure.
If the seller defaults and won’t close, can I force them to sell to me?
Possibly, but not guaranteed. A buyer can seek specific performance, asking the court to order the seller to complete on the original terms. Courts usually grant it only where the property is genuinely unique; for a fungible investment property, they tend to award damages instead (such as the cost of a comparable replacement). If the seller can’t deliver clear title, the buyer is generally entitled to terminate and recover the deposit plus reasonable expenses.
After a failed closing, how long do I have to sue?
Under Ontario’s limitations regime, a contract claim generally must be started within two years of the day the claim was discovered or ought to have been discovered (per law-firm summaries of Ontario’s two-year limitation). Practically, after a failed closing you should move quickly to get a lawyer and lock down evidence (the APS, any decline letter, resale records). This is educational content — rely on your real estate litigator for your specific situation.
Arthur Zhao
Real Estate Broker · FRI · ABR · SRS · PSA · MCNE · E-PRO · CLHMS & GUILD Elite · REAIS
VP & Branch Manager, Bay Street Group Inc.
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