Mass Tsang LLP
Automatically compiled listing. Details may contain errors.7 lawyers · Established 2013 · City of Toronto
One of 2,276 law firms listed in Toronto, and one of 307 handling Criminal Defence.
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Mass Tsang LLP is a criminal defence firm based in Toronto, with an office in the North York Centre area. Jeff Mass founded the firm in 2013 after working as an associate at a small Toronto criminal law firm, and Robbie Tsang joined as a founding partner. The firm practices criminal law exclusively, taking on cases from impaired driving and drug charges to assault, domestic assault, and sexual assault allegations, and it appears at courts across the Greater Toronto Area rather than at a single local courthouse.
Jeff Mass grew up in Montreal in a family of judges and lawyers, completed the dual civil and common law program at the University of Ottawa, and was called to the Ontario bar and the Barreau du Quebec in 2007. Robbie Tsang grew up in Toronto, studied human biology at the University of Toronto, and earned a law degree from Queen's University before being called to the bar in 2005. The firm's seven lawyers together have more than 30 years of combined criminal law experience, and one also takes on cases under Ontario's Dog Owners' Liability Act, defending dogs facing destruction orders along with their owners.
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This firm’s lawyers at a glance
- Languages on the roster
- Cantonese, Hebrew, Russian
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5075 Yonge Street, Suite 501, Toronto, Ontario M2N 6C6, Canada · 416-781-1148
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Intellectual PropertyThis 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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