Securing Lien Priority Under the Ontario Construction Act | Fridmar Law

What this issue involves

Lien priority refers to the order in which construction lien claims are paid when multiple parties assert rights against the same property or project funds. In construction disputes, the ranking of competing liens often determines recovery. Even where work was properly performed and payment is clearly owed, the outcome may depend on where a claim stands relative to others.

In Ontario, the payment hierarchy is governed by the Construction Act. The order of claims is created by statute rather than private agreement. The legislation establishes how lien claims relate to mortgages, judgments, and other competing interests connected to the same improvement.

When this issue typically arises

Priority disputes usually arise once payment problems escalate beyond a single unpaid invoice. They commonly appear when several liens are registered on a project, when lenders or mortgagees are involved, or when available funds cannot satisfy every claim.

The issue also becomes central when liens are enforced, when security is posted into court to clear title (often called vacating or bonding off a lien), or when financial distress begins to affect the project.

Why timing and structure matter

Timing plays a major role in determining ranking. Construction liens generally arise when the first labour or materials are supplied to the improvement, and their standing may depend on when they are preserved and perfected compared to other interests.

Project financing is equally important. Certain mortgages — including building mortgages used to finance the improvement — may take precedence in specific circumstances set out under the Construction Act. Holdbacks, trust obligations, and payment sequencing all affect how much protection ultimately exists for claimants.

Common mistakes and risks

A frequent misconception is that all construction liens rank equally. In practice, claimants may share available funds proportionally within the same statutory class, while other claims may rank ahead or behind depending on how and when they arose.

Another risk is assuming the issue can be addressed later. Once competing claims exist, priority frequently shapes settlement leverage and recovery outcomes. Misunderstanding it early often leads to unrealistic expectations and costly litigation.

How Fridmar Law can assist

Fridmar Law helps clients understand how statutory ranking applies within the context of their specific project and how competing interests may affect recovery. We advise on preservation and perfection requirements, removing liens from title (vacating or bonding off), trust claims, and enforcement proceedings.

Where disputes escalate, we coordinate lien strategy with broader litigation considerations, including how interim adjudication and court proceedings may influence leverage and timing.

When to speak with a lawyer

You should consider speaking with a construction lawyer when multiple lien claims exist, when lenders or mortgagees assert competing interests, or when enforcement steps are being considered. The order of payment is often outcome-determinative, and early guidance can prevent irreversible loss of leverage.

Legal advice is especially important where lien rights intersect with trust claims, posted security, or court-supervised proceedings.