Mohsen Seddigh, Partner
Education
J.D., Osgoode Hall Law School, 2015
Bar admission
Ontario, 2016
British Columbia, 2021
Mohsen’s practice includes complex litigation on public and private law matters. His devotion to his class action practice stems from a belief that class actions improve our society by promoting access to justice, corporate social responsibility, and the rule of law. His class action practice focuses on constitutional actions, Indigenous rights, consumer protection, and competition law.
Mohsen is an avid litigator who strategizes to obtain the best results for his clients, always through the most efficient means. He relishes the courtroom when arguing a case is what is required.
In addition to his practice, Mohsen devotes his time to access to justice and the advancement of the legal profession. He is adjunct professor of class actions law at the University of Windsor Faculty of Law.
He is Treasurer of the Ontario Bar Association, and a Trustee of the OBA Foundation. He is a member of the Supreme Court of Canada Liaison Committee.
Mohsen obtained his law degree from Osgoode Hall Law School. He has an LL.M., and spent two years in doctoral law studies at the University of British Columbia, Faculty of Law.
Mohsen is proficient in Persian and Spanish.
In his spare time, Mohsen enjoys endurance running and cycling.
- Bell Canada Prison Calls
- CIBC Unpaid Overtime
- Concrete Admixture Price-Fixing
- Crown Crest Leasing and Peoples Trust Company
- Farmed Atlantic Salmon
- First Nations Bands
- First Nations Youth and Families
- Fragrance Price Fixing
- Gold Price Manipulation
- Indigenous Youth in Alberta
- Indigenous Youth in British Columbia
- Indigenous Youth in Canada
- Indigenous Youth in Manitoba
- Indigenous Youth in Ontario
- Indigenous Youth in Quebec
- Indigenous Youth in Saskatchewan
- Keurig K-Cups
- Philips CPAP Machines
- Quebec Indigenous School Abuse
- Silver Price Manipulation
- Suboxone® Dental Decay
- Ticketmaster
- Wyldewood Creek Condo Project
- Youth Detention Strip Searches
- Ranked as “Up and Coming” by Chambers Canada – Dispute Resolution: Class Action (Plaintiff) (2025)
- Listed as “Ones to Watch” in Best Lawyers in Canada – Class Action Litigation (2022 – 2025)
- Listed as “Lawyers to Watch” in Canadian Legal LEXPERT Directory – Class Actions (2023)
- Listed as “Lawyers to Watch” in LEXPERT Special Edition – Canada’s Leading Litigation Lawyers (2023)
- “Rethinking Forum Non Conveniens from an Access to Justice Perspective”, Windsor Review of Legal and Social Issues (2022:43) (peer-reviewed)
- “Class Action Certification: ‘Meaningful Screening Device’ and the ‘Compensable Loss’ Theory”, (2021-2022) Canadian Class Action Review – Irwin Law 17:1 at 193
- “Section 36 Requests for Access to Information and the Competition Bureau: Hast Thou Forsaken Me?” Canadian Competition Law Review (October 2018)
- “Federal certiorari applications: affidavit evidence in the age of dwindling cross-examinations”, (2016) 12:11 ImmQuest – Carswell
- “The Inherent Right Court: One step on a long road” (May 18, 2016) Ontario Bar Association – Aboriginal Law Section
- “Book Note: Judicial Decision-Making in a Globalised World: A Comparative Analysis of the Changing Practices of Western Highest Courts, by Elaine Mak” (2015) 52.1 Osgoode Hall Law Journal 369
- “Book Note: The Behavior of Federal Judges: A Theoretical and Empirical Study of Rational Choice, by Lee Epstein, William M Landes, and Richard A Posner” (2014) 51.2 Osgoode Hall Law Journal 729
- Member of Board of Directors and Director of Public Affairs and Policy of the Ontario Bar Association (OBA)
- Member of the Supreme Court of Canada Liaison Committee
- Past Chair of the OBA Class Actions Section
- Treasurer of the Ontario Bar Association
- Trustee of the OBA Foundation
- Member of the Canadian Bar Association (CBA)
- Member of the Young Lawyers Sub-committee of CBA Competition Law Section