A condo lien is one of the most serious financial tools a condominium corporation has at its disposal and one of the least understood by owners until it is registered against their unit. Whether you are behind on common expenses, facing a special assessment you have not paid, or simply trying to understand your exposure as a condo owner, knowing how a condo lien in Canada works is essential knowledge. The consequences of a registered lien escalate quickly, and the legal framework behind it is considerably stronger than most owners expect.
What Is a Condo Lien?
A condo lien is a legal claim registered against a condominium unit by the corporation when an owner fails to pay amounts owed, most commonly, unpaid common expense fees, special assessments, or costs the corporation has incurred in obtaining compliance from a non-compliant owner. Once registered on title, the lien is a public record attached to the property that encumbers the owner's ability to sell or refinance the unit until the debt is resolved.
The condo corporation lien process is not a discretionary tool; it is a legally prescribed mechanism under provincial condominium legislation. In Ontario, the Condominium Act sets out specific timelines and procedures the corporation must follow. Other provinces have equivalent provisions under their own condo or strata legislation, though the specifics vary.
How the Lien Process Works in Ontario

In Ontario, a condominium corporation has the right to register a lien against a unit once the owner is three months or more in arrears on common expenses. The corporation does not need a court order to register the lien; it is an administrative right granted directly by the Condominium Act. The lien must be registered within three months of the default that gave rise to it, or the corporation loses its lien rights for that particular amount. This tight timeline creates an incentive for corporations to act quickly once arrears accumulate.
What the Lien Covers
The lien on the condo unit in Ontario covers more than just the unpaid fees themselves. Under the Act, the lien amount includes the unpaid common expenses, any interest charged on the arrears as specified in the declaration or bylaws, and the corporation's reasonable legal costs incurred in registering the lien. These legal costs are added directly to the lien balance, meaning the owner owes the corporation's lawyer fees on top of whatever they originally failed to pay. The total amount can grow substantially from the original arrears figure in a relatively short period.
Priority Over the Mortgage
One of the most significant and often surprising aspects of a condo lien in Canada is its priority position. Under Ontario's Condominium Act, a properly registered condo lien has priority over most other encumbrances on the unit, including a mortgage registered before the lien. This means that in an enforcement scenario, the corporation's claim for unpaid fees is satisfied before the mortgage lender's claim, up to the amount of three months of common expenses.
This super-priority status is precisely why mortgage lenders pay close attention when a lien is registered on a property they hold as security. Lenders are typically notified of a registered lien by their title insurer or through a property search, and many will pay the arrears on the owner's behalf, adding the amount to the mortgage balance rather than allowing the corporation to proceed with enforcement. This is not a guaranteed outcome, but it is a common one in practice.
How a Lien Affects Selling or Refinancing

A registered lien creates immediate complications for any owner trying to sell their unit or access financing. Any buyer's lawyer conducting due diligence will identify the lien through a title search or status certificate review, and virtually no buyer will agree to close on a unit with a lien registered against it unless the lien is discharged as a condition of closing. In most sale transactions, the outstanding lien amount is paid out of the seller's proceeds at closing, and a discharge is registered at the same time.
Refinancing is equally affected. A lender will not advance mortgage funds against a title that carries a lien with priority over their mortgage. The lien must be discharged before or as part of any refinancing transaction.
Enforcing the Lien
If the owner does not pay the arrears after a lien is registered, the corporation has the right to enforce the lien through a legal process that can ultimately result in the forced sale of the unit. The condo corporation lien process for enforcement involves obtaining a court order, and the corporation can recover its enforcement costs, including additional legal fees, from the proceeds of the sale. The owner receives any remaining equity after all amounts owed to the corporation and the mortgage lender are satisfied.
Forced sales are relatively uncommon because most situations resolve before reaching that stage, either the owner pays, the lender intervenes, or a negotiated payment arrangement is reached. But the legal mechanism exists and has been used, which is why treating a registered lien as an urgent matter rather than a manageable inconvenience is the only appropriate response.
How to Resolve a Condo Lien
Pay the Full Amount Owing
The most straightforward resolution is paying the full amount of the lien, including the arrears, interest, and legal costs, directly to the corporation. Once payment is confirmed, the corporation is required to discharge the lien from the title. Confirm the exact payoff amount in writing from the corporation or its lawyer before remitting payment, as the balance may differ from your original arrears figure due to accumulated interest and costs.
Negotiate a Payment Arrangement
Some corporations will agree to a structured repayment plan even after a lien has been registered, particularly if the owner is communicating in good faith and the arrears are not extreme. Any arrangement should be documented in writing and reviewed by a lawyer before it is agreed to. It is also worth confirming whether the corporation will hold off on further enforcement steps during the repayment period as part of the agreement.
Seek Legal Advice Immediately
Any owner who discovers a lien on a condo unit in Ontario that has been registered against their property should consult a real estate or condo lawyer without delay. Understanding the exact amount owing, the timeline the corporation is working on, and what options are available, including refinancing to pay off the lien, negotiating directly with the corporation, or, in extreme cases, exploring insolvency options, gives the owner the information needed to respond effectively rather than reactively.
