Class Action Litigation Corporate and Commercial Litigation
Peter J. Lukasiewicz
Recognized in Best Lawyers since 2014 Awarded Practice Areas
Biography
Peter Lukasiewicz is the chief executive officer (CEO) of the firm. He previously served as the firm’s external managing partner, with primary responsibility for client relationships. He also served as managing partner of the Toronto office for 15 years.
Prior to becoming CEO, Peter practised as a senior commercial litigator, counselling and representing domestic and global clients in a wide range of complex commercial disputes. He has been repeatedly recognized as one of Canada’s leading commercial litigators by the Canadian Legal Lexpert Directory and The Best Lawyers in Canada.
Peter is actively involved in his community. He is a member of the board of directors of Indspire, an Indigenous-led charity that invests in the education of First Nation, Inuit and Métis students across Canada. In 2014-15, he was president of The Advocates’ Society, Canada’s premier organization for advocates, having served on its board for the previous eight years. From 2006 to 2010, he chaired Ryerson University's board of governors.
In recognition of his community service, Peter was awarded the Queen’s Diamond Jubilee Medal in 2012 and the Queen’s Golden Jubilee Medal in 2002.
Overview
- Ontario, Canada
- American Bar Association - Member
- Canadian Bar Association - Member
- Institute of Corporate Directors - Member
- The Advocates' Society - Member
- Ontario, Canada
- American Bar Association - Member
- Canadian Bar Association - Member
- Institute of Corporate Directors - Member
- The Advocates' Society - Member
Client Testimonials
Awards & Focus
Recognized in The Best Lawyers in Canada™ 2026 for work in:
- Class Action Litigation
- Corporate and Commercial Litigation
News & Media
Additional Information
- REPRESENTATIVE WORK
Peter's ongoing and recent representative engagements include:
- Advising one of Canada's largest telecommunication companies in litigation and arbitration matters related to advertising
- Advising Boards of Directors regarding senior management issues
- Counsel to a global record label in a class action brought by rights holders of songs published in Canada
- Counsel to Toronto Community Housing Corporation in respect of the class action arising from the fire at 200 Wellesley Street East, Toronto
- Representing a national mutual fund company in defence of claims asserted by an investment management company
- Defeated a motion for a multi-million dollar interlocutory injunction in Winnipeg and secured the dissolution of an interim injunction
- Successfully overturned an adverse trial decision in the Ontario Court of Appeal and now prosecuting an action for a mortgagee challenging the expropriation of a large commercial property
- Defending a leading brokerage firm in investor actions launched under the provisions of the Ontario Securities Act
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