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Condo Lien vs Your Mortgage Lender in Ontario: Who Is Paid First

See how a condo corporation's lien ranks against a mortgage in Ontario, why the three-month rule matters, and what it means for owners and lenders.

Real Estate4 min readTSLBy the Treadstone Law Team · OntarioUpdated October 28, 2026
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Key takeaways
  • A registered condo lien has priority over every registered and unregistered encumbrance, including a mortgage.
  • The corporation must register its certificate of lien within three months of the default, or the lien expires.
  • In one Court of Appeal for Ontario decision, a late certificate meant the lien lost priority over the first mortgage.
  • Registering a certificate gives the corporation priority in recovering the money, and losing the lien means losing that priority.

When condo fees go unpaid, two creditors can end up competing for the same unit: the condo corporation and the mortgage lender. Owners and lenders both want to know who is paid first if the unit has to be sold.

The short answer is that a condo lien can rank ahead of a mortgage, but only if the corporation follows the rules. This article explains the basic rule, the timing requirement that matters most, and what it means in practice. It is general information, not advice on a particular file.

The basic rule: the lien can come first

Under s. 86(1), a registered condo lien has priority over every registered and unregistered encumbrance, including a mortgage. That is a strong position for the corporation.

The lien arises automatically if an owner does not pay common expenses. It covers the unpaid amount plus interest and reasonable legal costs and expenses of collecting. Registering a certificate of lien gives the corporation priority in recovering the money.

There is a catch. Under s. 86(5), the lien loses that priority over an encumbrance unless the corporation gives the required notice. The details of the notice should be confirmed in the Act or with a lawyer.

The three-month rule

The lien expires three months after the default that gave rise to it unless the corporation registers a certificate of lien within that time. The Ontario certificate of lien form says the lien does not secure common expenses that became due more than three months before the certificate was registered.

The corporation must also give the owner written notice of the lien at least 10 days before it registers the certificate. In practice, a corporation that waits too long loses priority. If the lien expires, the corporation loses that priority.

What a Court of Appeal decision showed

A Court of Appeal for Ontario decision from 2017 illustrates how strict the timing is. The lien lost priority over the first mortgage because the certificate was registered after the three-month period had passed, and the corporation had to repay $4,530.98 that it had deducted.

Under s. 134(5), costs from a compliance order are added to the common expenses for the unit. The Court held that this does not extend the three-month period, so the corporation must still perfect its lien in time.

PointResult
Certificate registered within three monthsLien can keep its priority
Certificate registered after three monthsLien expired; priority lost, as with the first mortgage in the decision
Compliance order costs added to common expensesDoes not extend the three-month period

What this means for owners and lenders

Whether a lien has kept or lost priority in a given case depends on the exact dates, the notices given and the documents involved. That is a question for a lawyer who can review the file.

What to do next

If you are an owner behind on fees, the safest move is usually to deal with the arrears early. Contact the corporation, because a payment plan may be possible. Do not assume your mortgage lender will be unaffected, since a registered lien can have priority over it.

Frequently asked questions

Does a condo lien always beat my mortgage?

Not always. A registered condo lien has priority over every registered and unregistered encumbrance, including a mortgage. But it loses that priority over an encumbrance unless the corporation gives the required notice, and it expires if the certificate is not registered in time.

What is the three-month rule?

The lien expires three months after the default that gave rise to it unless the corporation registers a certificate of lien within that time. The certificate form states that the lien does not secure common expenses that became due more than three months before registration.

Can legal costs from a compliance order extend the deadline?

No. Costs from a compliance order are added to the common expenses for the unit, but the Court of Appeal held that this does not extend the three-month period.

If I pay the condo corporation, does the lien go away?

Owners can pay at any point until the unit is sold, and payment requires the corporation to discharge the lien. Make sure you get the full amount, since it can include interest, legal fees and certificate costs.

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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