Let us be honest for a moment. Commercial real estate disputes rarely start with shouting in a courtroom. They usually begin quietly. A missed payment. A refinance gone wrong. A lender suddenly asking, “Wait… who gets paid first?” This is where a real estate litigation lawyer in Montreal often steps in, and trust us, priority fights are never as simple as they sound.
We see this all the time. Two or more parties believe they have a valid claim over the same property. Everyone thinks they are first in line. Only one actually is. That gap between belief and reality is where litigation lives.
What do priority and security interests really mean?
Let us keep this simple. A security interest is a legal right a lender has over a property when money is loaned. Priority decides the order of payment if something goes wrong and the property is sold. Think of it like a checkout line. Someone is always ahead, even if it does not feel fair.
In commercial real estate, priority is usually based on registration. Whoever registers their interest first often has priority. But, and this is a big but, it is not always that clean.
Where things start to fall apart
Disputes usually pop up when documents are missing, filed late, or unclear. Sometimes a lender assumes their mortgage is registered properly. Sometimes it is not. We have seen cases where a lender discovers years later that a prior lien was never discharged. Awkward moment.
Studies from the American Bar Association have noted that title defects and registration errors remain one of the top causes of commercial real estate litigation in North America. That tells us something important. These issues are common, not rare edge cases.
Another problem? Multiple layers of financing. Senior lenders, mezzanine lenders, private investors. Everyone wants protection. When the deal collapses, everyone suddenly wants answers.
The role of contracts and fine print
This is where things get spicy. Priority can be changed by agreement. Intercreditor agreements often spell out who gets paid first, even if registration says otherwise. But those agreements must be clear. If they are vague or outdated, courts step in to interpret intent.
Canadian courts have repeatedly held that poorly drafted security agreements can weaken a lender’s position, even if the loan itself was valid. In simple words… paperwork matters. A lot.
We once saw a case where a lender assumed priority because “that is how it was always done.” The court did not agree. Courts rarely reward assumptions.
Fraud, mistakes, and unexpected twists
Not every dispute is innocent. Sometimes security interests are challenged due to fraud or misrepresentation. A borrower may grant the same security twice. A lender may fail to disclose existing charges. These situations invite litigation fast.
According to a 2023 report from the Canadian Mortgage and Housing Corporation, commercial mortgage defaults often uncover layered security problems that were missed during due diligence. That report quietly confirmed what many lawyers already know… shortcuts cost money later.
How courts usually decide priority fights
Courts look at a few key things. Registration dates. Contract language. Conduct of the parties. And yes, fairness plays a role, but it is grounded in law, not feelings.
Judges also examine whether a party acted reasonably. Did they search title properly? Did they rely on verbal assurances? Did they ignore warning signs? These details matter more than people expect.
Why early legal advice changes everything
Here is the hard truth. Once priority is contested, someone usually loses. Often badly. That is why early advice from someone who understands commercial property law is critical.
A lawyer montreal businesses trust will usually tell you the same thing. Fix problems early. Review security documents often. Do not assume registration equals protection.
Commercial real estate is a long game. Priority disputes are not dramatic accidents. They are slow-building problems that finally surface when money is tight.
If there is one takeaway, it is this. Priority and security interests are not just technical details. They decide who walks away paid and who does not. And in litigation, that line is everything.

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