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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Business & Commercial Law Ontario » How to Handle a Mechanics Lien Filed Against Your Commercial Plaza in Ontario

How to Handle a Mechanics Lien Filed Against Your Commercial Plaza in Ontario

27 Jun 2026 5 min read No comments Business & Commercial Law Ontario
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In Ontario, a mechanics lien is legally called a Construction Lien. If registered against your commercial plaza, it can freeze your ability to refinance or sell. You can clear your property title by applying to the Superior Court of Justice to vacate the lien, which generally requires paying the disputed amount plus 25% (up to $250,000) for costs into court.

Understanding Construction Liens on Commercial Properties

Managing a commercial plaza involves constant maintenance, renovations, and dealing with various contractors. If a dispute arises over payment with a builder, supplier, or tradesperson, they may register a claim for lien against your property title. While commonly known as a “mechanics lien” in other jurisdictions, in this province, it is governed by the Ontario Construction Act. 📍

A registered construction lien is a massive headache for commercial landlords. Whether your plaza is located in Toronto, Mississauga, or Ottawa, a lien immediately alerts your mortgage lender to a default and halts any refinancing, sales, or further construction draws. Ignoring it is never an option, as the contractor can eventually force the sale of your property to satisfy the debt. Most commercial property owners choose to take immediate legal steps to protect their investment. 📝

Step-by-Step Process in Ontario

Removing a lien quickly is critical for business continuity. The Ontario legal system provides a specific mechanism to substitute the property with a cash deposit or bond, allowing you to regain control of your title while fighting the underlying dispute. 💼

Step 1: Identifying the Lien and Reviewing Title

The first step is officially confirming the lien exists on your property title. Often, landlords find out about the lien from their bank rather than the contractor. You or your lawyer should pull a Parcel Register (title search) from the Ontario Land Registry Office to view the exact registered document, the name of the claimant, and the total amount claimed. 📋

Step 2: Consulting a Commercial Real Estate Law Firm

Because the Construction Act has incredibly strict timelines, you should immediately contact a law firm that practices construction or commercial litigation. A lawyer will review the claim to ensure the contractor met the statutory deadlines (generally, they have 60 days from the date of last supply to register the lien). If the contractor was late, the lien might be invalid. 🕐

Step 3: Negotiating a Quick Settlement

If the dispute is over a small amount or a simple misunderstanding, it may be faster and cheaper to negotiate a settlement directly. Upon payment, the contractor must register a Release of Lien. However, if the dispute involves poor workmanship or inflated invoices, paying them simply to remove the lien is not always the best strategy. 💰

Step 4: Bringing a Motion to Vacate the Lien

To clear your title without giving the disputed money to the contractor, your lawyer will draft a Motion to Vacate the Lien. This motion is filed at the Superior Court of Justice. You are asking the judge for permission to pay the claimed amount into court as security, rather than leaving your property locked up as collateral. ⚔

Step 5: Paying Funds into Court

Once the judge grants the Order to Vacate, you must pay the required funds into the Accountant of the Superior Court of Justice. Under the Construction Act, you must generally deposit the full amount of the lien claim, plus an additional 25% (capped at $250,000) to cover the contractor’s potential legal costs. 💰

Step 6: Registering the Court Order on Title

After the funds are deposited, you will receive a certificate or court receipt. Your lawyer will then register the formal Court Order on your property’s title. This legally “vacates” (removes) the lien from the land, freeing up your ability to refinance or sell, while the actual dispute over the money continues in civil court. 🏲

How Much Does it Cost in Ontario?

Dealing with a construction lien requires access to significant capital, both to pay into court and to cover legal fees. Using a table helps break down the potential costs you might face when vacating a lien. 💵

Expense TypeDescriptionEstimated Cost (CAD)
Security Paid into CourtThe total lien amount claimed plus 25% for costs (maximum $250,000 for costs).Varies based on claim
Court Filing FeesFee to file a motion at the Superior Court of Justice.$339
Lawyer Fees (Motion)Drafting the motion, attending court, and registering the order.$2,500 – $7,500+
Title RegistrationProvincial fees to register documents at the Land Registry Office.$80 – $150

Remember that the money paid into court is not given to the contractor; it is held safely by the court until the lawsuit is resolved or settled. If you win the case, the money is returned to you.

How Long Does the Process Take?

Time is usually of the essence when a lien freezes your property financing. Drafting the motion and obtaining an ex parte or consent order to vacate the lien can usually be completed in 2 to 4 weeks depending on court availability. ⏳

However, the underlying legal battle to decide who actually deserves the money held in court can take substantially longer. Complex commercial construction litigation can easily take 1 to 3 years to reach a trial or final settlement in Ontario.

Frequently Asked Questions (FAQ)

What happens if the contractor missed the 60-day deadline?

If the contractor fails to register their lien within 60 days of the last date they supplied materials or services, their lien rights generally expire. Your lawyer can demand they discharge it, or bring a fast motion to have the invalid lien discharged with costs awarded against the contractor.

Can I just wait for the lien to expire?

In Ontario, a registered lien expires if the contractor does not “perfect” it by starting a lawsuit (issuing a Statement of Claim) and registering a Certificate of Action on title within 90 days of the last date of supply. If they miss this second deadline, the lien becomes invalid.

Does a lien impact my commercial tenants?

Generally, no. A lien is registered against your ownership interest in the real estate, not the operating businesses of your tenants. However, if a tenant hired the contractor for leasehold improvements, the contractor might try to lien both the tenant’s leasehold interest and the landlord’s fee simple interest.

Can I use a Lien Bond instead of cash?

Yes. Instead of paying cash into the Superior Court, you can purchase a lien bond from a licensed surety company or provide a letter of credit from a major Canadian bank. This is very common for large commercial liens that exceed hundreds of thousands of dollars.

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