About Rousseau Mazzuca LLP

Rousseau Mazzuca LLP is headquartered in downtown Toronto, with a second office in Peterborough. Its team of about fifteen lawyers covers four areas: construction law, employment and labour law, commercial and corporate law, and litigation. The firm describes itself as serving Toronto, the GTA, and the rest of Ontario with 40+ years of experience, and its clients range from large and small businesses to trade unions and individual clients.

Aaron Rousseau is a founding partner of the firm. Rousseau began at a Bay Street firm, then moved to a specialized employment law firm before founding Rousseau Mazzuca, and has since appeared before labour arbitrators, the Ontario Human Rights Tribunal, and the Ontario Labour Relations Board. Michael Mazzuca earned a Master of Laws from Osgoode Hall Law School, a postgraduate diploma in legal studies from the College of Law in Sydney, and a Bachelor of Laws from Melbourne Law School. Mazzuca has been a teacher and lecturer of law courses at the university level and has published on construction and employment law. The firm belongs to the Toronto Construction Association.

In the community

  • The firm is a member of the Toronto Construction Association.

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This firm’s lawyers at a glance

Law schools
University of British Columbia, University of Western Ontario 2 of 14 lawyers

Where to find them

Toronto, Ontario, M5H 2M5 · 416-304-9899

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This listing was generated by AI from public sources in August 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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