Jeff Mass
Automatically compiled listing. Details may contain errors.Managing Partner at Mass Tsang LLP
About Jeff
Jeff Mass is the founding and managing partner of Mass Tsang LLP, practicing criminal law exclusively. Raised in Montreal in a family of judges and lawyers, he studied at the University of Ottawa, completing his Quebec Civil Law degree in 2004 and his Common Law degree in 2005, and was called to both the Barreau du Quebec and the Ontario bar in 2007. He began as an associate at a boutique criminal law firm before founding Mass Tsang, where he defends clients against charges ranging from minor offences to the most serious, including impaired driving, bail hearings, drug and weapon offences, theft, fraud, and assault. Jeff represents clients at all levels of trial court in Ontario and is a member of the Toronto Lawyers Association and the Law Society of Ontario.
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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 their firm’s website. Confirm Jeff Mass’s licence and standing in the Law Society of Ontario directory ↗
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