About Roy O'Connor LLP

Roy O'Connor LLP is a small litigation firm in Toronto that focuses on class actions, commercial and securities litigation, and general civil litigation. Founding partners Peter L. Roy and David F. O'Connor left large national law firms to start the practice, bringing decades of complex corporate commercial and securities litigation experience with them. The firm represents both plaintiffs and defendants, appearing before Canadian courts and administrative tribunals in disputes involving securities regulation, shareholder rights, and director and officer liability.

As class counsel, the firm has secured judgments and settlements exceeding $2.5 billion, including work on the national hepatitis C settlement for people infected through blood transfusions before 1986 or after 1990, and unpaid overtime claims against several Canadian banks. Roy is a Certified Specialist in Civil Litigation with the Law Society of Upper Canada and a Fellow of the Litigation Counsel of America. O'Connor served on the steering committee for the Volkswagen and Audi diesel emissions class actions, which reached settlements exceeding $2.3 billion. Robert Spiegel, Of Counsel to the firm, practices in English and French after seven years as counsel at the Toronto Stock Exchange.

Milestones & recognition

  • Benchmark Canada has named the firm a Firm of the Year in 2013, 2015, 2017 and 2023.
  • A 2022 decision in the firm's unpaid overtime case against CIBC was named one of Lexpert's Top 10 Business Decisions of 2021/2022.
  • The firm recovered 100% of the more than $50 million in management fees it alleged Transamerica Life Canada had overcharged policyholders, in a settlement.
  • Peter L. Roy has been a Certified Specialist in Civil Litigation with the Law Society of Upper Canada since 1989.

Good to know

A person using a wheelchairWheelchair accessible

This firm’s lawyers at a glance

Called to the bar
1992 · median 34 years in practice 2 of 6 lawyers
Law schools
University of Windsor (3), McGill University, University of Toronto 5 of 6 lawyers

The neighbourhood

Roy O'Connor LLP's office is on Yonge Street in midtown Toronto, at 1920 Yonge Street. Both founding partners spent their earlier careers at large national law firms before starting this smaller practice. The firm's work, class actions, securities litigation and commercial disputes, takes it before Ontario's courts and regulatory tribunals such as the Ontario Securities Commission and IIROC rather than any one neighbourhood courthouse.

Frequently asked questions

Is Roy O'Connor LLP a class action law firm?
Yes. Roy O'Connor LLP has served as class counsel in judgments and settlements totaling more than $2.5 billion, in cases involving product liability, unpaid overtime, and securities matters.
I think I'm part of one of the firm's unpaid overtime class actions against a bank, how do I find out?
Roy O'Connor LLP was class counsel in the unpaid overtime class actions against CIBC, Scotiabank, TD Bank and RBC Dominion Securities. Case details and settlement information are posted on the firm's website under Cases.
Does Roy O'Connor LLP only represent people suing companies, or does it defend companies too?
The firm acts for both plaintiffs and defendants. It has represented independent directors and corporate clients in securities and commercial litigation, alongside its work for plaintiffs in class actions.
What kind of securities or shareholder disputes does the firm handle?
Roy O'Connor LLP handles director and officer liability, shareholder oppression and derivative actions, and securities litigation, including matters before regulators such as the Ontario Securities Commission and IIROC.
Who founded Roy O'Connor LLP?
Peter L. Roy and David F. O'Connor founded the firm after both left senior positions at large national Canadian law firms to start this firm in Toronto.
Where is Roy O'Connor LLP located and how do I contact the firm?
The office is at 1920 Yonge Street, Suite 300, in Toronto. It can be reached at 416-362-1989 or by email at info@royoconnor.ca.

Where to find them

1920 Yonge Street, Suite 300, Toronto, Ontario M4S 3E2 · 416-362-1989

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Listing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗