A Purchase and Sale Agreement in Ontario is more than just a basic contract; it serves as the legal foundation for every real estate transaction. Once signed, it becomes a binding document with serious financial consequences if either party breaches it. That’s why buyers and sellers shouldn’t rely on generic contract templates or DIY legal advice. Working with a real estate lawyer can mean the difference between a smooth closing and a costly legal dispute.
At Khan LLP, we regularly review and negotiate Purchase and Sale Agreements for clients across Ontario, making sure every clause protects your interests. You can learn more about our legal services here:
➡️ Purchase and Sale Services: https://khanllp.com/purchase-and-sale
While every agreement is unique, Ontario real estate contracts generally include these core components:
Full legal names of the parties, including corporations or non-residents if applicable.
Using incorrect legal names may delay the closing or lead to major issues later.
If you’re a non-resident or buying property on behalf of a foreign corporation, make sure you review our legal resource here:
➡️ https://khanllp.com/purchase-and-sale-for-non-residents
Includes:
If the description is wrong, ownership transfer can be delayed at closing. This is one reason lawyers conduct title searches and due diligence before finalizing the deal.

The agreement must clearly state:
Deposits are usually held in trust by a real estate brokerage or lawyer. If a deal collapses, deposit disputes are common, and this is where legal representation becomes crucial.
Conditions are the buyer’s “escape route” if something important goes wrong. Common examples include:
Once conditions are waived, the agreement becomes firm and binding. If you’re unsure what conditions protect you the most, talk to a lawyer before signing.
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Many buyers try to remove conditions to win in a competitive market. That decision can cost them thousands of dollars later. A lawyer can often negotiate more favorable terms instead of removing protections entirely.
➡️ Learn more about how we protect real estate buyers here:
https://khanllp.com/purchase-and-sale
The closing date is the official day ownership transfers.
On closing, the lawyer:
If there are issues like unpaid taxes, title defects, or bank delays, closing may get postponed. When that happens, buyers and sellers may be held financially responsible.
These outline what the seller is promising about the condition of the property. Examples:
Bad warranties = expensive problems later.
This is where your lawyer plays the biggest role. We look for:
Many buyers also choose title insurance, which protects against hidden risks. If you're not sure whether you need title insurance, this guide may help:
➡️ https://khanllp.com/purchase-and-sale
Real estate agents are not legally allowed to give legal advice. A lawyer:
✔ Identifies risks in contract language
✔ Suggests edits to protect you
✔ Identifies missing clauses
✔ Ensures closing is compliant
✔ Protects your deposit & rights
✔ Manages tax implications
Once an agreement is firm, walking away is extremely difficult. Buyers and sellers can be sued for damages, forced to complete the sale, or lose deposits.
We often get calls like:
❓ “Can I cancel after signing?”
❓ "What if market prices change?"
❓ “What if my financing fails?”
The answer depends on your specific agreement and conditions, which is why legal review before signing is essential.
Q: Is a Purchase & Sale Agreement legally binding in Ontario?
Yes. Once conditions are waived or fulfilled, the contract is binding and enforceable.
Q: Can I cancel a Purchase & Sale Agreement?
Cancellation may be possible only if you have unwaived conditions or legal grounds. Otherwise, you may face legal consequences.
Q: Do I need a lawyer to review the agreement?
Yes. A lawyer ensures you understand the legal impacts of every clause and protects your money and property rights.
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Khan Law is a boutique law practice that has been providing legal services to the Greater Toronto Area since the year 2000.