Can a Lender Sue You After a Power of Sale in Ontario?

A common assumption is that once a lender sells your property under power of sale, the debt is settled — the house is gone, the lender got their money, and that's the end of it. That assumption is often wrong. If the sale doesn't cover everything owed, the lender can, in many cases, still come after you personally for what's left.

Whether that risk applies to you depends largely on one document: the personal covenant in your mortgage.

The Short Answer

Yes — an Ontario lender can generally sue a borrower for a shortfall (also called a deficiency) remaining after a power of sale, provided the mortgage included a personal covenant to repay and the sale proceeds weren't enough to cover the full debt, costs, and interest owed.

Why a Shortfall Happens

A power of sale is meant to recover what the lender is owed, not necessarily the full market value of the property. Sale proceeds can fall short of the outstanding balance for several reasons: the sale happens at a discount because it's a forced sale under time pressure, the property's value has dropped since the mortgage was taken out, or accumulated interest, legal costs, and other charges have added significantly to what's actually owed by the time the sale closes.

The Personal Covenant: Where the Lender's Right to Sue Comes From

Most mortgage documents contain two separate things: the security (the charge registered against the property) and the personal covenant — the borrower's personal promise to repay the debt. The security lets the lender go after the property. The personal covenant is what lets the lender go after the borrower directly, as an ordinary debt claim, for anything the property sale didn't cover.

If a mortgage genuinely has no personal covenant (uncommon, but it can happen with certain structures), the lender's recovery may be limited to the property itself. In the vast majority of standard mortgages, though, the personal covenant is there, and it survives the sale of the property.

What a Deficiency Claim Looks Like

1. The power of sale closes, and the lender applies the proceeds against what's owed — principal, interest, and the costs of the sale itself.
2. The lender calculates the shortfall — the difference between the total debt (including interest and costs) and what the sale actually recovered.
3. The lender can sue on the personal covenant for that shortfall, generally through the same kind of civil lawsuit used to collect any other unsecured debt.
4. If the lender obtains judgment, they can pursue standard collection remedies against the borrower's other assets and income, subject to the usual legal limits on collection.

As an illustration only: if a property sells for $450,000 under power of sale, and the total debt (including accumulated interest and sale costs) comes to $510,000, the borrower could face a lawsuit for the roughly $60,000 difference.

Defences and Considerations

A borrower facing a deficiency claim isn't automatically without options. Depending on the facts, it may be worth examining:

• Whether the lender conducted the sale properly and took reasonable steps to get a fair price — a lender generally owes a duty to act reasonably in how it markets and sells the property.
• Whether the amounts claimed as costs, fees, and interest are actually recoverable under the mortgage terms.
• Whether the mortgage documents actually contain a valid personal covenant covering the amount claimed.
• Whether the timing of the claim raises any limitation period issues.

These are fact-specific questions that genuinely benefit from a lawyer's review of the sale process and the mortgage documents, not general assumptions either way.

Reducing Your Risk

If you're facing potential default, engaging with your lender early — before a power of sale is triggered — is generally the strongest way to avoid a deficiency situation altogether, whether that means a repayment arrangement, refinancing, or a voluntary sale on more favourable terms than a forced sale typically achieves.

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