Sarah J. Armstrong

Sarah J. Armstrong

Toronto, ON recognized lawyers icon Recognized in Best Lawyers since 2019
Fasken

376 Best Lawyers awards

Fasken logo

Awarded Practice Areas

Bet-the-Company Litigation Class Action Litigation Corporate and Commercial Litigation International Arbitration

Biography

Sarah Armstrong is the Chair of Fasken’s Ontario Litigation and Dispute Resolution Practice Group. An experienced and strategic litigator with broad litigation, arbitration and dispute resolution experience, she has developed a robust practice focused on commercial and contractual disputes and class action defence. Sarah is also a member of Fasken’s Ontario Professional Development Committee and is Co-Chair of the firm’s Ontario Pro Bono Committee.

Working with clients across a range of industries, including mining, professional services, insurance, health, automotive, retail and manufacturing, Sarah advises clients on complex and business-critical commercial disputes and professional liability matters. Her class action experience includes securities, product liability, privacy, insurance and consumer cases, and she has advocated for clients at both the trial and appellate levels. Acting as lead counsel and co-counsel in matters before all levels of court in Ontario as well as before domestic and international arbitral tribunals, Sarah also has experience in administrative law matters, including acting as independent legal counsel to the discipline and fitness practice committees of the College of Physicians and Surgeons of Ontario.

Fasken

376 Best Lawyers awards

Fasken logo

Overview

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in Canada 2026 for work in:
  • Bet-the-Company Litigation
  • Class Action Litigation
  • Corporate and Commercial Litigation
  • International Arbitration

Your browser is not fully compatible with our automatic printer friendly formatting.

Please use the print button to print this profile page.

Spinning circle Big letter B