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Running a Litigation Search on a Target Business Before You Buy in Ontario

Learn how Ontario buyers check whether a target business is facing or has faced lawsuits, and how to build litigation protection into the purchase agreement.

Buying & Selling a Business6 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • A litigation search looks for civil claims, applications, and enforcement proceedings filed against the target corporation and, often, its owners or directors personally.
  • Ontario doesn't have one single database that captures every lawsuit against every business.
  • A single small claims dispute over an unpaid invoice, resolved years ago, is very different from an active claim alleging a defective product, an employment-related lawsuit, or a dispute…

When you buy an Ontario business, you can end up inheriting more than its customers and equipment — you can inherit its legal fights too. A litigation search is one of the standard due diligence steps buyers use to find out whether the business they're about to acquire is currently being sued, has recently settled a claim, or has an unresolved judgment sitting against it.

Sellers don't always volunteer this information, and not because they're being dishonest. A dispute that feels minor to a seller who's been living with it for a year can look very different to a buyer seeing it for the first time. A proper search, paired with the right contract protections, closes that gap.

This article walks through what a litigation search covers, where the records actually live, and how your purchase agreement should respond to whatever it finds.

What a Litigation Search Actually Checks

A litigation search looks for civil claims, applications, and enforcement proceedings filed against the target corporation and, often, its owners or directors personally. In practice, this usually means searching court indexes by the exact legal name of the corporation — plus any known operating names — and the names of the individuals behind it.

A search typically aims to surface:

What it generally can't tell you

That's exactly why a search is paired with direct questions to the seller, not treated as a stand-alone substitute for them.

Where These Records Live

Ontario doesn't have one single database that captures every lawsuit against every business. Civil litigation records are spread across several registries — the Superior Court of Justice for larger civil claims, the Small Claims Court for lower-value disputes, and specialized tribunals depending on the industry. A federal court search can also be relevant if the target holds trademarks or other intellectual property that's been the subject of a dispute.

Because the records are scattered, a thorough litigation search is usually run by, or coordinated through, your lawyer — someone who knows which registries are worth checking for a business of this size and industry, rather than relying on a single generic search product.

Reading the Results: What Matters and What Doesn't

Not every hit on a litigation search is a deal-breaker. A single small claims dispute over an unpaid invoice, resolved years ago, is very different from an active claim alleging a defective product, an employment-related lawsuit, or a dispute over the very assets you're about to buy.

When something turns up, ask:

  1. Is the matter active, settled, or dismissed?
  2. What is the dollar exposure, and is it insured?
  3. Does it relate to an asset or contract that is actually part of this deal?
  4. Has the seller already disclosed it — and does that disclosure match what the search shows?

Building Litigation Protection Into the Purchase Agreement

Whatever the search finds, or doesn't find, your purchase agreement should still do the work of protecting you going forward. Standard tools include:

Share Deals vs. Asset Deals: Why Structure Changes the Exposure

Whether litigation risk actually follows you depends heavily on how the deal is structured. In a share purchase, you are acquiring the corporation itself, so any pending or contingent liability the corporation carries — including lawsuits — comes with it as a matter of law, whatever the purchase agreement says about disclosure. In an asset purchase, liabilities not specifically assumed generally stay with the selling corporation, so an existing lawsuit against the seller typically does not automatically become yours, unless it directly attaches to an asset you are buying.

That structural difference is one of several reasons the choice between a share deal and an asset deal deserves its own careful discussion with your lawyer, separate from the litigation search itself.

Frequently asked questions

Does a litigation search cover disputes outside Ontario?

Not automatically. If the target business operates in other provinces or deals regularly with out-of-province suppliers or customers, your lawyer may recommend extending the search to those jurisdictions as well.

The seller already told me about a lawsuit — do I still need the search?

Yes. The search independently confirms what the seller tells you and can surface matters a seller genuinely forgot about, or didn't think worth mentioning, including older judgments still sitting on file.

Can I still close the deal if there's a pending lawsuit against the target business?

Often, yes. Many deals close with known litigation, handled through price adjustments, indemnities, holdbacks, or insurance. Whether it's workable depends on the size and nature of the claim, which is why an early read on exposure matters.

Who actually runs the litigation search?

Usually your lawyer arranges it as part of overall due diligence, either directly or through a search agent, and interprets the results alongside everything else uncovered about the business.

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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