Jeff Orenstein

Bar Admissions:
Quebec (2002), Ontario (2011)
Montreal, Quebec and Ottawa, Ontario
(514) 266-7863 ext. 2
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Mr. Orenstein’s practice is devoted primarily to plaintiff’s class action work. He has experience with virtually all aspects of class action litigation. He is the lead counsel in multiple national and provincial class actions. Mr. Orenstein has appeared numerous times before the Quebec Court of Appeal, the Superior Court of Quebec, the Ontario Superior Court of Justice, the Quebec Court, the Quebec Labour Relations Commission and Arbitration Boards.

Leadership Positions

  • American Association for Justice, Board of Governor for Quebec (2016-2019)
  • Quebec Bar Association, Consumer Protection Committee
  • Mount Sinai Hospital Board of Trustees, Director


  • The Law Society of Upper Canada
  • The Advocates’ Society
  • The American Association for Justice
  • Melvin M. Belli Society
  • Community Legal Education Ontario, Content Committee Member
  • County of Carleton Law Association, Membership Committee

Classes and Seminars

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