A Purchase and Sale Agreement in Ontario is more than a simple contract; it forms the legal foundation for every real estate transaction. Once signed, it becomes a binding document with significant 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 make the difference between a smooth closing and an expensive legal dispute.
At Khan LLP, we regularly review and negotiate Purchase and Sale Agreements for clients across Ontario, ensuring every clause protects your interests.
While every agreement is unique, Ontario real estate contracts generally include these core components:
Ensure the full legal names of all parties are correctly listed, including corporations or non-residents if applicable. Using incorrect legal names can delay closing or cause significant issues later.
If you’re a non-resident or purchasing property on behalf of a foreign corporation, learn more about purchase agreements 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 attempt to remove conditions to make their offer more competitive. However, this can cost them thousands of dollars later. A lawyer can often negotiate more favorable terms without eliminating important protections.
Learn more about how we protect real estate buyers.
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 a crucial role. We review for:
Ownership disputes
Easements
Liens
Encroachments
Unregistered interests
Fraud risk
Title defects
Many buyers also opt for title insurance, which protects against hidden risks. If you’re unsure whether title insurance is right for you, learn more here about 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.