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Can I Challenge a Low Power of Sale Price in Ontario?

Think your lender sold your home too cheaply? Learn how power of sale proceeds work, what evidence matters and what court options may exist in Ontario.

Real Estate5 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • After a power of sale, sale proceeds go to the lender's debt, sale expenses and other encumbrances in priority, and any surplus goes to the mortgagor.
  • Once a purchaser buys after notice was given in professed compliance, the purchaser's title cannot be impeached, but a person harmed has a remedy against whoever exercised the power of sale.
  • Whether a price was too low depends on the facts, so gather appraisals, listing records and notices early.
  • Timing matters: the notice periods are short, so get legal advice as soon as you receive a notice of sale.

Seeing your home sell for less than you think it was worth is painful, especially when the sale leaves you owing money or leaves little surplus. Many owners ask whether the price can be challenged and whether the sale can be undone.

This article explains how a power of sale works in Ontario, what happens to the money, what protection the buyer has, and what kind of evidence is useful if you believe the price was too low. The answer depends heavily on the facts, so a lawyer should review your file.

How a power of sale works and where the money goes

If your mortgage contains a power of sale clause, the lender may sell the property once you have been in default for at least 15 days and at least 35 days' notice has been given to everyone with an interest in the property. If the mortgage has no power of sale clause, the statutory power of sale in Part II of the Mortgages Act applies, after three months of default and 45 days' notice to interested persons.

The notice of sale is given on Form 1, Notice of Sale under Mortgage, which is the prescribed form under O. Reg. 814/21.

Sale proceeds go first to the principal and interest owed to the lender, the expenses of the sale, and other encumbrances in order of priority. Any remaining surplus goes to the mortgagor. A low price therefore hurts you in two ways: it can reduce or eliminate any surplus, and it may leave a shortfall, depending on your mortgage and the facts.

What protection the buyer has

Many owners hope the sale can simply be reversed. That is difficult once a buyer has purchased. Under s. 36 of the Mortgages Act, where notice was given in professed compliance with the Part, the purchaser's title cannot be impeached for non-compliance with the Part's provisions.

The same provision says a person who was harmed has a remedy against the person who exercised the power of sale. In practical terms, a claim is often aimed at the lender or whoever conducted the sale rather than at the new owner.

Section 35 also matters. A document containing a statutory declaration by the mortgagee or its solicitor that the sale complies with Part III is conclusive evidence of compliance with that Part. This makes it hard to attack the paperwork itself, which is why the focus of a price complaint is usually on how the sale was conducted and what the lender is answerable for.

Evidence that helps if you think the price was too low

There is no single test you can apply on your own. Whether a lender met its obligations on price, and what remedies a court could order, depends on the facts and on provisions that a lawyer should confirm on the current statute. What you can do is preserve evidence early.

Ask for an accounting of the proceeds if you did not receive one. Because the proceeds are applied to the debt, sale expenses and other encumbrances in a set order, the statement shows whether a surplus should have come to you.

Notice, service and spousal issues

Sometimes the stronger issue is not price but process. The sale papers must include a solicitor's declaration naming everyone entitled to notice and stating they were served, along with declarations of service. A statement of spousal status is required for every person whose spouse was not served with notice.

Where notice was required but not given, a court order may be obtained dispensing with service. If you or a spouse never received a notice, tell your lawyer right away.

If the home was a matrimonial home, the Family Law Act also gives a spouse with a possession right the same redemption and relief rights, and the same notice of enforcement, as the other spouse.

Compare your options

SituationWhat to consider
Sale has not happened yetAct on the notice period; the lender may sell after 35 days' notice where the mortgage has a power of sale clause
Sale completed, surplus expectedRequest an accounting; surplus goes to the mortgagor after the lender, expenses and other encumbrances
Sale completed, you were not servedAsk a lawyer about notice and spousal declarations
Sale completed, price seems lowPreserve evidence; the buyer's title is protected but a remedy may exist against the person who exercised the sale

What to do next

A lawyer can confirm what duties applied to the lender on price, which court remedies are realistic and how costs may be affected.

Frequently asked questions

Can a court undo a power of sale?

Once a purchaser has bought after notice was given in professed compliance, the purchaser's title cannot be impeached for non-compliance with the Part's provisions. A person harmed has a remedy against the person who exercised the power of sale. Whether any other relief is available depends on the facts.

Who gets the money if the home sells for more than I owe?

The proceeds go first to principal and interest owed to the lender, the expenses of the sale, and other encumbrances in order of priority. Any surplus goes to the mortgagor.

Is the lender's lawyer's declaration final?

A statutory declaration by the mortgagee or its solicitor that the sale complies with Part III is conclusive evidence of compliance with that Part. That limits challenges to the paperwork, so a price complaint needs to be framed carefully by a lawyer.

What if I never got a notice of sale?

Notice must go to everyone with an interest in the property, and the sale papers must declare who was served. If notice was required but not given, a court order may be obtained dispensing with service. Raise this with a lawyer immediately.

Sources

Links go to official government, court and regulator pages. The law changes — confirm you are reading the current version.

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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