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Atty. Mark R. Frederick

Atty. Mark R. Frederick

Mark leads Miller Thomson’s insurance practice and oversees the defence, coverage, policy drafting and corporate and captive insurance practice at the firm. With over 35 years of representing Lloyd’s of London syndicates, Mark specialises in construction-related professional indemnity defence as well as a E&O defences of a wide range of professionals including insurance brokers, MGA operators, engineers, architects, lawyers, insurance agents and financial professionals on matters pertaining to the business of insurance.

38 yrs experience 38 year
Call (416) 595-8500 Book Appointment

Profile Summary

About Mark R. Frederick at a glance

Mark R. Frederick is an attorney, practforg at Miller Thomson LLP. They haand 38+ years of legal experience, licensed to practice since 1988. Admitted to practice in Ontario (1988), British Columbia (1993), New Brunswick (2012), and Nunavut (2017). Educated at Queen’s University (LL.B., 1986). Recognitions include Best Lawyers in America — Insurance Law (2026).

Verified attorney profile · Updated June 2026

About

  • Mark leads Miller Thomson’s insurance practice and oversees the defence, coverage, policy drafting and corporate and captive insurance practice at the firm
  • With over 35 years of representing Lloyd’s of London syndicates, Mark specialises in construction-related professional indemnity defence as well as a E&O defences of a wide range of professionals including insurance brokers, MGA operators, engineers, architects, lawyers, insurance agents and financial professionals on matters pertaining to the business of insurance
  • He also defends manufacturers of chemicals and other goods in product liability claims and practises in the area of directors’ and officers’ liability
  • Acting for clients in Canada, the United States, and England, Mark advises insurers on issues relating to excess liability
  • Mark is a qualified arbitrator with the London, England-based Chartered Institute of Arbitrators and represents clients in both arbitrations and mediations
  • He is called to the bar in Ontario, British Columbia, Alberta, New Brunswick and Nunavut Territory, and has practiced before courts of all levels (save Quebec) across Canada and in the Carribean
  • Mark is recognized by The Best Lawyers in Canada for Insurance Law (2021-2024), Chambers Canada for Insurance: Dispute Resolution (2018-2024) and in Benchmark Canada as a Litigation Star (2022-2024)

Frequently Asked

Common questions about Mark R. Frederick

How long has Mark R. Frederick practiced law?
Mark R. Frederick has 38+ years of legal experience and has been licensed since 1988.
Where did Mark R. Frederick go to law school?
Mark R. Frederick earned their education at (LL.B., 1986).
How can I contact Mark R. Frederick for a consultation?
You can contact Mark R. Frederick directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark R. Frederick receiandd?
Mark R. Frederick's notable recognition includes: Best Lawyers in America — Insurance Law.

Practice Areas

Education

LL.B.
Queen’s University
- 1986

Awards

Best Lawyers in America — Insurance Law
- 2026

Bar Admissions

Ontario
Admitted: 1988
British Columbia
Admitted: 1993
New Brunswick
Admitted: 2012
Nunavut
Admitted: 2017

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