Best Lawyers in Ontario, Canada for Corporate and Commercial Litigation
Margaret L. Waddell is a founding partner of Waddell Phillips PC. She is a leader of the class action bar, and also practices commercial litigation and provides mediation services. Margaret has acted as counsel in a number of well known class actions such as Cannon v. Funds for Canada Foundation , Currie v. McDonald’s Corporation et al ., and Markson v. MBNA Canada. She acted for the intervenor FAIR in the Green v. CIBC et al. appeals to the Ontario Court of Appeal and Supreme Court. On...
John’s practice is in corporate and commercial litigation, and includes contract disputes, real estate litigation, shareholder remedies, fiduciary obligations, insolvency and class actions. He has appeared before all levels of trial and appellate courts and before domestic and international arbitral tribunals. A significant percentage of his practice is in the Ontario Commercial Court. He has also represented members of the National Hockey League in salary arbitrations with their player...
Dan Thomas is a litigator with many years of experience in complex trial advocacy and strategy. He maintains a practice in corporate, commercial, securities, and public law litigation, alongside a focus on white collar defence and investigations. Dan is recognised by The Best Lawyers in Canada ™ in Corporate and Commercial Litigation, and is ranked by Benchmark Litigation Canada as a "Litigation Star". In 2024 - alongside leading public law, regulatory, international lawyer Leila Ghahha...
Michael Cooper is a partner at Whelton Hiutin. His commercial litigation practice focuses on construction, real estate and leasing, shareholder disputes and employment law. In the areas of construction and real estate litigation, Michael has represented a number of large land developers and contractors in complex disputes. He has appeared before all levels of court in Ontario, representing clients at trials, applications and motions. He has also appeared before a number of administrative trib...
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...
Rated by Martindale-Hubbell as AV-Preeminent (highest rating) in litigation, commercial law and regulatory law, named one of Canada’s top 50 trial lawyers by Benchmark Litigation, listed in The Best Lawyers in Canada and Chambers Canada, Andrew has extensive trial and appellate experience before all levels of court, including the Supreme Court of Canada. Andrew is regularly chosen by nationally-recognized corporations, institutions and individuals to assist in complex commercial, regula...
David Rosenbaum practices in the areas of civil litigation and health law. He has assisted clients in all types of commercial litigation, as well as estate litigation and insurance litigation and he provides advice on health regulatory matters. David represents clients in commercial disputes, including large commercial fraud cases. His extensive experience dealing with complex legal and factual issues includes acting in several large cases involving disputes arising from commercial lease fina...
Kate McGrann provides her clients with pragmatic and strategic representation on matters including complex corporate/commercial, securities, and administrative and public law issues. She has represented clients at all levels of the Court in Ontario, the Supreme Court of British Columbia, and before regulatory tribunals including the Ontario Securities Commission and the Canadian Investment Regulatory Organization (CIRO) (formerly, the Investment Industry Regulatory Organization of Canada and ...
As a trusted advisor for clients navigating business disputes, Michael is known for his practical approach and calm demeanour through high-stakes and often difficult situations. Commended by a judge for conducting “highly focused and effective examinations”, he has appeared before all levels of court in Ontario and regularly acts for clients in mediations and arbitrations. Michael acts for both public and privately held companies, with an emphasis on contractual disputes, franchis...
Frank is a senior litigator in Hicks Morley’s Toronto office. He is a strategic counsel for his clients, and has significant courtroom and hearing experience representing clients in complex and high-profile cases. Frank represents his clients as a close and long-term advisor, and as a highly skilled advocate on their most important and challenging cases. Frank has particular expertise in arguing judicial review and appeals, and in litigation relating to the following: employment dispute...
Gasper is a partner in our litigation department. Gasper's practice focuses on a broad range of complex matters, including both commercial and civil disputes. He has particular experience with commercial lease disputes, contractual disputes, construction law disputes, as well as debt collection matters. Gasper has appeared as counsel before the Ontario Superior Court of Justice; various administrative tribunals and both private mediations and arbitrations. Gasper has also assisted with variou...
Bart Sarsh, a partner in Gowling WLG’s Hamilton office, focuses his practice on commercial litigation and insolvency and restructuring matters, offering clients tailored strategies aligned with their business goals. Known for his courtroom and arbitration experience, Bart provides clear and effective guidance in navigating complex disputes and high-stakes recoveries. In his commercial litigation practice, Bart helps creditors, directors, officers and shareholders of private Ontario and ...
Jordan has acted for clients before judges, juries and arbitrators throughout Ontario. He represents licensed professionals, professional associations, insurance companies, and both private and public corporations across issues spanning general commercial, tort, professional responsibility, administrative and public law litigation. In particular, Jordan: routinely advises corporations on all manner of disputes, including corporate governance and commercial litigation engagements; was lead cou...
Peter Mantas leads Fasken’s London and Ottawa litigation teams, the firm’s Procurement group, and co-leads its White Collar Defence and Investigations group. Peter is a litigation partner with over 30 years' experience in complicated, high stakes cases before national and international courts, tribunals and arbitration panels. Clients appreciate Peter’s knowledge, strategic advice, teamwork and tough but reasonable approach. He is also valued for his skill in negotiations, c...
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.
