Thompson, MacColl & Stacy LLP
Automatically compiled listing. Details may contain errors.4 lawyers · Established 1986 · Peel Region
One of 555 law firms listed in Mississauga, and one of 160 handling Business & Corporate Law.
About Thompson, MacColl & Stacy LLP
Thompson, MacColl & Stacy LLP, known as TMS, is a law firm in Mississauga, Ontario, founded in 1986 by Gerard V. Thompson, Charles R. MacColl, and James E. Stacy. Charles MacColl passed away in the spring of 2008, a fact the firm states plainly on its own history page. Gerard V. Thompson was called to the bar in 1977 and later became Counsel to the firm on January 1, 2016, and TMS has continued in Mississauga since under Stacy and a newer group of lawyers.
TMS practices corporate and commercial law, commercial litigation, employment law, real estate, family law, and succession planning, acting for both businesses and individuals across Mississauga and the wider Golden Horseshoe. Its transactional lawyers handle corporate reorganizations, mergers, commercial leasing, and real estate deals, while its family law and estates lawyers handle divorce, custody, and wills matters. A few of the firm's lawyers, including Carmen A. De Facendis and Rene Liebs-Benke, arrived at TMS after years as sole practitioners in Mississauga, a pattern that shows up more than once in how the firm has grown.
Practice areas
Our guide: How to Hire a Family Lawyer in Brampton
Our guide: How to Get a Divorce in Ontario
In the community
- A founding lawyer at TMS has served as President of the Mississauga Dixie Rotary Club.
- That same founder has been Director and Chairperson of the Mississauga Business Show.
- The founder has also served as Director of the Mississauga Symphony and Director of the Mississauga Arts Council.
- On the health charity side, the founder has served as President of the Heart and Stroke Foundation in Peel and President of Our Place Peel.
Good to know
Wheelchair accessibleLawyers 4
This firm’s lawyers at a glance
- Law schools
- Osgoode Hall Law School 1 of 4 lawyers
Who handles what
Where to find them
Suite 5, 1020 Matheson Blvd East, Mississauga, Ontario L4W 4J9 · 905-625-5591
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Personal InjuryEmployment & Labour LawBusiness & Corporate LawThis listing was generated by AI from public sources in September 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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