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Karen Sargeant

Karen M. Sargeant

Partner | Co-leader, Labour, Employment & Human Rights Fasken
As the Canadian workforce continues to age the impact on business strategy will be significant.
Jurisdiction Ontario, 1997 | British Columbia, 1996
Language(s) English
Office(s) Toronto


Karen Sargeant is co-leader of the Labour, Employment and Human Rights Group, she is also the Chair of Fasken’s Ontario Labour, Employment and Human Rights Group. She has represented employers in all aspects of workplace law for more than 20 years.

Karen frequently appears before arbitrators, mediators, the Ontario Labour Relations Board, the Canada Industrial Relations Board, the Human Rights Tribunal of Ontario and the Canadian Human Rights Tribunal. She has many winning decisions from all of these administrative bodies, for clients like Air Canada, Gate Gourmet Canada Inc., Humber River Hospital and Sunnybrook Health Sciences Centre.

Karen fiercely represents her clients’ interests. Although she is a fierce advocate, she also knows whether and when to pursue settlement. At the appropriate time, and when appropriate for our client’s interests, she engages in negotiations with an objective of agreement. Karen has been able to assist employers in all sectors achieve negotiated settlements that are acceptable to them, while saving them significant litigation time and expense.

In addition to her appearance work, Karen provides clients with exceptionally high quality day-to-day legal advice. She presents an accurate picture of outcomes to clients and provides practical solutions to clients’ workplace problems. In this way, she knows clients’ workplaces and has an active interest in helping them manage their employment issues.

Karen regularly lectures and teaches at conferences and to groups of management employees on employment and labour matters. She is also a frequent writer and was a founding editor of Fasken’s weekly bulletin, HR Space.


Client Work

  • York University successful in having termination for benefits fraud upheld,
  • BrokerBay Inc. acquired by Carrier Global Corporation,
  • Ontario Nurses' Association v. Sunnybrook Health Sciences Centre,
  • Air Canada Pilots Association v. Air Canada,
  • Essa Pharma signs agreement to purchase Realm Therapeutics,
  • Ontario Nurses’ Association v. Sunnybrook Health Sciences Centre,
  • Stella-Jones acquires Shelburne Wood Protection,
  • CUPE, AC Component v. Air Canada,
  • Fasken defends Humber River Hospital’s decision,

Career & Education


  • LLB University of Toronto
  • B Comm (Hons) University of British Columbia

Memberships & Affiliations

  • Member (by invitation), American Employment Law Council (AELC)
  • Member, Canadian Association of Counsel to Employers
  • Member, Canadian Bar Association
  • Member, Ontario Bar Association - Labour and Employment Law Section
  • Member, Law Society of Upper Canada
  • Member, American Bar Association - Labor and Employment Law Section
  • Member, The Employers Counsel Network


Fasken Institute



Book Litigation and the Aging Workforce: Have we gone too far? Annual Review of Civil Litigation 2016
Article Slapping Another Employee Not Necessarily Cause
Article Tales From the Great White North: Terminations in Canada

Speaking Engagements

Extraordinary Damages Update Human Resources Professionals Association
Update on Extraordinary Damages Law Society of Upper Canada Six-Minute Employment Lawyer Conference


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