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Jeffrey S. Percival

Jeffrey S. Percival


B.A. (Hons), French Translation, McGill University (1993)
B. Journ., Ryerson University (1995)
LL.B., Osgoode Hall Law School (1998)
Canadian Securities Course (2001)
LL.M., Securities Law, Osgoode Hall Law School (2003)
Called to the Ontario Bar, 2000

Other Languages

Spanish (working knowledge)


Jeffrey S. Percival is the Head of the Employment & Labour Practice and a Member of the Commercial Litigation, Insurance Law, and Construction Practices.

Jeffrey’s practices focuses on employment and commercial litigation, representing private sector employer clients, manufacturing and engineering companies, Ontario-based entrepreneurs, national and multi-national corporations and non-profit organizations.

He has appeared before all levels of Ontario courts, including the Ontario Superior Court of Justice and the Ontario Court of Appeal. He has also appeared before various administrative tribunals, including the Workplace Safety and Insurance Appeals Tribunal, the Workplace Safety and Insurance Appeals Branch, the Ontario Human Rights Tribunal and the Ontario Labour Relations Board.

Jeffrey has significant expertise defending automotive manufacturers and engineering firms from product liability and professional negligence claims. He also provides Human Resources advising and defends claims against Ontario employers.

Jeffrey has successfully defended architects and engineering firms at professional negligence trials and appeals. He has also defended public and private sector entities on Construction Law Act trust claims.

Jeffrey also acts in defamation (libel and slander) matters, estates litigation, as well as injunctive proceedings including Mareva Injunctions and Anton Piller Orders.


  • Elected Director, Ontario Bar Association
  • Member, Advocates’ Society
  • Member, Peel Law Association
  • Member, Oakville Chamber of Commerce
  • Past-Chair, Board of Directors, Mississauga Board of Trade



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