06/18/2026
Common mistakes can invalidate a construction lien in Ontario before you ever get to court. Missing a deadline. Naming the wrong party. Getting the date of last supply wrong.
Under the Construction Act, the rules are strict and the consequences are real. Learn more about what contractors, subcontractors, and suppliers need to know before filing.
https://www.gfwlaw.ca/blogs/construction-lien-mistakes-ontario
Construction liens in Ontario come with strict rules. Learn the most common filing mistakes and how to protect your right to payment.