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Mark Frederick

Miller Thomson

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Position: Partner
Rating:
  • Litigation Star
Practice Areas:
Insurance
Jurisdictions:
Languages:
English
Biography

Mark Frederick, is your go‑to counsel for insurance defence, acting in professional liability and errors and omissions matters for a wide range of professionals, including engineers, architects, lawyers, insurance agents, appraisers, financial professionals, and real estate agents. Acting for clients in Canada, the United States, and England, Mark also advises insurers on issues relating to excess liability, policy construction and the interpretation of coverage. In his ecclesiastical law practice, Mark acts for both Roman Catholic and Protestant churches, consulting on church policies and canon law construction, among other issues. His tailored approach, combined with his insightful advice, ensures your business goals are met efficiently. 

Mark stays ahead in his field by attending and lecturing at key conferences, such as those focused on construction law and evidence in institutional liability cases. He blends experience and knowledge finely tuned to suit your needs. 

In professional circles, Mark is a frequent lecturer to prominent trade associations across Canada and to Lloyd’s of London in the United Kingdom. Called to the bar in Ontario, Alberta, British Columbia, New Brunswick and Nunavut, he is also a proud member of the the Canadian Bar Association, as well as a Fellow of the London, England‑based Chartered Institute of Arbitrators. His accolades include recognition in The Best Lawyers in Canada, Chambers Canada and Benchmark Canada, all for his Insurance Law prowess.

Updated Dec 2025

Key practice areas
  • Insurance
Sector expertise
  • Insurance
Academic qualifications
  • Fellow - Chartered Institute of Arbitrators (1994)
  • LL.B. -  Queens’ University (1986)
  • B.A. - St. Paul’s College (1986)
Bar Admissions
  • Ontario (1988)
  • British Columbia (1993)
  • New Brunswick (2012)
  • Nunavut (2017)
Address:
40 King Street West, Suite 6600
Ontario, ON, M5H 3S1
Canada
Tel:+1 416 595 8175 Email:Contact this practitioner Website:millerthomson.com