Current View:

This content is provided by Mark A Gelowitz.

Practice Areas

Mark is a key contact for the firm’s Corporate and Securities Litigation Group. Mark has a business-focused civil and securities litigation, appellate and international commercial arbitration practice. His practice covers a wide variety of issues in corporate and commercial law including mergers and acquisitions litigation, director and officer liability, corporate governance, shareholder disputes, oppression, privacy, libel and slander, real estate lease disputes, product liability, mining litigation and class actions. He has appeared before the Supreme Court of Canada, the Ontario, Alberta, British Columbia and Yukon Courts of Appeal, the superior trial courts of numerous provinces and the Ontario and British Columbia Securities Commissions.


Mark completed two appellate judicial clerkships, the first with the late Chief Justice E.D. Bayda of the Saskatchewan Court of Appeal in 1986 and the second with the late Justice John Sopinka of the Supreme Court of Canada in 1989

Professional Memberships

Advocates' Society, OBA, Metropolitan Toronto Lawyers' Association


Mark maintains a blog on recent developments in Canadian appellate law and practice at

Sopinka and Gelowitz on the Conduct of an Appeal, Fourth Edition (Lexis/Nexis 2018).

Mondaq Comparative Guide to International Arbitration, Canada (M. Gelowitz and L. Tomasich), January 2019.


Oxford University, B.C.L.

Queen’s University, LL.B.