How to Sue Someone in Ontario: A Step-by-Step Guide

Suing someone in Ontario is a formal legal process that requires following specific court procedures. Whether you're pursuing a business dispute, unpaid debt, property damage, or breach of contract, understanding the process helps you make informed decisions.

Step 1: Send a Demand Letter

Before filing a claim, send a formal demand letter outlining what you're owed and why. This creates a paper trail, demonstrates good faith, and often resolves disputes without court involvement. Many defendants respond to a well-drafted lawyer's letter. Give a reasonable deadline — typically 14-21 days.

Step 2: Choose the Right Court

The court you file in depends on the amount you're claiming:

• Small Claims Court: Claims up to $35,000 — simpler, faster, lower cost
• Superior Court of Justice: Claims over $35,000 — more formal, higher cost, but broader remedies
• Divisional Court: Appeals and certain judicial reviews

Step 3: File a Statement of Claim

In Superior Court, you commence your lawsuit by filing a Statement of Claim — a formal document setting out the facts, the legal basis for your claim, and the relief you seek. This document must be carefully drafted; vague or imprecise pleadings can weaken your case. Once filed, the defendant has 20 days (if served in Ontario) to file a Statement of Defence.

Step 4: Discovery

Discovery is the process of exchanging relevant documents and information before trial. This includes documentary discovery (sharing relevant records) and examinations for discovery (questioning the other party under oath). Discovery often reveals the true strength or weakness of a case and leads to settlement.

Step 5: Pre-Trial Conference

Before trial, a judge meets with both parties to encourage settlement, narrow the issues, and ensure the case is ready for trial. Many cases settle at or before this stage.

Step 6: Trial

If the matter doesn't settle, it proceeds to trial where both sides present evidence and arguments. A judge (and sometimes jury for certain cases) decides. Ontario civil trials can range from one day to several weeks depending on complexity.

Important Limitations to Know

In Ontario, you generally have 2 years from when you discovered the claim to commence a lawsuit. Missing this limitation period can permanently bar your right to sue. If you're approaching the 2-year mark, get legal advice immediately.