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Best Lawyers in Ontario, Canada for Corporate and Commercial Litigation
John F. Rook KC is a lawyer recognized by Best Lawyers in the practice areas of Class Action Litigation, Competition / Antitrust Law and Corporate and Commercial Litigation. John F. practices law in Toronto, Ontario Best Lawyers has recognized John F. Rook KC since 2006. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which John F. Rook KC is held by other lawyers.
Ellen Bessner is an experienced, tough-minded commercial litigator, known for her determination and common sense advice. After 25 years of practice on Bay Street at prominent Canadian law firms, Cassels Brock & Blackwell LLP and Gowling WLG, Ellen joined Babin Bessner Spry LLP in 2014, where she is a leader in commercial and securities litigation, employment litigation, insurance defence, directors’ and officers’ liability, professional negligence, class actions, and regulator...
Described by his peers as ‘the gold standard in this space, a phenomenal litigator’, for more than 30 years Jonathan has won landmark decisions across a broad variety of subject matter including competition law, constitutional law, liability of public authorities, professional liability, criminal law, financial services, franchise law and contract disputes. He has tried over 90 cases to judgment and argued over 60 appeals in provincial appellate courts and the Supreme Court of Can...
Danielle has a robust civil litigation practice with experience managing complex cases across a range of subject-matters including shareholder disputes, securities disputes, insolvency and restructuring matters, oppression claims, class actions, injunctions, civil fraud, and defamation. A tough advocate who is committed to client service excellence, Danielle considers all aspects of a case to achieve the best results for her clients. With a track record of prosecuting and defending claims at ...
Gerry is recognized as a leading litigator whose dispute resolution practice encompasses all aspects of civil, administrative and commercial litigation, with an emphasis on professional negligence, pensions, cross-border issues, franchise, banking, insurance, real estate, product liability and employment matters. Gerry has appeared in all levels of court in Ontario, the Federal Court of Canada, the Supreme Court of Canada and before administrative boards and tribunals. As an adjunct professor...
David is a founding partner in Roy O’Connor LLP, a litigation boutique in Toronto. He was previously a partner in a large national law firm. His practice is focused on commercial and class action litigation (both defence and plaintiff side). He was recognized as a finalist by Benchmark Canada for Class Action Litigator of the Year in 2015 and again in 2017, and for plaintiff counsel of the year in 2019, 2020 and 2021. He has been consistently recognized by Benchmark Canada as a litigati...
Laura is an accomplished class action litigator with over twenty-five years of experience defending complex cases. She regularly represents global clients in a wide variety of industries in the defence of class actions including with respect to privacy and cyber-security, competition, securities and consumer issues. Laura is Chair of Fasken’s firm-wide Litigation group and Fasken’s Class Actions practice group. Laura is a results driven and innovative legal thinker focused on prov...
Kathryn Manning is a lawyer recognized by Best Lawyers in the practice area of Corporate and Commercial Litigation. Kathryn practices law in Toronto, Ontario Best Lawyers has recognized Kathryn Manning since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kathryn Manning is held by other lawyers.
David Vaillancourt is a lawyer recognized by Best Lawyers in the practice areas of Corporate and Commercial Litigation and Insurance Law. David practices law in Toronto, Ontario Best Lawyers has recognized David Vaillancourt since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David Vaillancourt is held by other lawyers.
Sean S. Carter is a lawyer recognized by Best Lawyers in the practice area of Corporate and Commercial Litigation. Sean S. practices law in Toronto, Ontario Best Lawyers has recognized Sean S. Carter since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Sean S. Carter is held by other lawyers.
Tamara Farber is a partner in the Toronto office of Miller Thomson practicing exclusively in environmental matters. She provides expertise on real estate and business transactions involving brownfield redevelopment and contaminated land sale and acquisition including investigating contaminated lands, environmental due diligence, audits, property remediation, site decommissioning, waste management, environmental compliance matters, environmental risk management, representations, warranties, in...
John's advocacy is tried and tested, having conducted dozens of lengthy and complex arbitrations, trials, and administrative hearings. John has a robust appellate practice, having appeared at the Court of Appeal for Ontario on over 40 appeals and before the Supreme Court of Canada on multiple occasions. John does not shy from challenge. Some of John’s most notable cases are the product of his creative, boundary-testing approach, and passion for applying the law creatively to achieve sen...
Sharon Vogel has been recognized for her success at resolving and litigating disputes relating to large-scale infrastructure, industrial and commercial projects. Among the many professional acknowledgments she has received, Benchmark Litigation has named her Construction Lawyer of the Year (three times) and repeatedly one of the top women in litigation in the country, she is ranked Band 1 by Chambers Global , she was recognized as one of the 25 most influential lawyers in Canada by Canadian L...
Edward Marrocco is a lawyer recognized by Best Lawyers in the practice areas of Administrative and Public Law, Corporate and Commercial Litigation and Health Care Law. Edward practices law in Toronto, Ontario Best Lawyers has recognized Edward Marrocco since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Edward Marrocco is held by other lawyers.
Anne draws on her decades of broad experience in complex commercial litigation, real estate disputes, corporate governance challenges, professional liability matters and medical negligence cases. She also has experience in the areas of human rights and privacy law. Anne’s judgment is respected by her peers, and she is often retained as a mediator to settle disputes. Anne regularly appears before the Ontario Superior Court of Justice, the Toronto Estates Court, the Toronto Commercial Lis...
Considered by many to be one of Ontario's most respected civil litigators, David Williams practices in the areas of class action litigation, complex commercial litigation and personal injury . Notably, Dave also has a special record of achievement in medical malpractice cases where he has successfully represented plaintiffs. He has also been active in representing Ontario lawyers in litigation supported by LawPro — the Ontario lawyer’s professional liability insurance plan. As a v...
Our Methodology
Recognition by Best Lawyers is based entirely on peer review. Our methodology is designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.
The Process
Best Lawyers employs a sophisticated, conscientious, rational, and transparent survey process designed to elicit meaningful and substantive evaluations of the quality of legal services. Our belief has always been that the quality of a peer review survey is directly related to the quality of the voters.