Best Lawyers in Canada for Corporate and Commercial Litigation

Scott Boucher focuses his practice on commercial litigation, with particular emphasis on trusts and estate disputes, as well as insolvency and restructuring matters. He advises clients on a broad range of issues, including wills variation and validity claims, elder law and capacity matters, receiverships, CCAA and bankruptcy proceedings, foreclosures, and contract, corporate, and property disputes. He has appeared before the Supreme Court of British Columbia, the British Columbia Court of App...

Shannon Hayes, KC, practices commercial litigation and arbitration and is the Leader of the Litigation & Dispute Resolution Group in the firm’s Calgary office. She has been practicing for more than 20 years in dispute resolution and has a broad range of experience on commercial and business dispute matters, working with companies in a wide range of industries, including energy, power, real estate, and technology. Shannon has appeared as counsel before all levels of court in Alberta ...

Billy Katelanos is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate and Commercial Litigation. Billy, who practices law in Montréal, Quebec, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Billy is held by other top lawyers in the same geographic and legal practice area.

Michel Décary has pleaded before the courts of all levels, including up to the Supreme Court of Canada, as well as provincial and federal administrative tribunals, domestic arbitration tribunals and commissions of inquiry, in matters involving civil, corporate, and securities law as well as administrative, constitutional and labour law. Michel is a Fellow of the American College of Trial Lawyers, of which he was Regent from 2006 to 2010 and was named Montréal Corporate Governanc...

Mark’s litigation practice focuses on construction disputes, insurance, and commercial litigation. His insurance practice covers a broad range of areas, with a focus on professional negligence, acting on behalf of architects and engineers in various types of construction claims. He also acts for manufacturers and suppliers in product liability claims, dealing with breach of warranty and negligence claims relating to allegedly defective equipment, materials, and consumer goods. Mark has ...

Christine Provencher is a partner in Fasken’s Commercial Litigation group. With extensive experience in civil and commercial litigation, Christine represents the firm’s clients in any type of contractual dispute, primarily in the areas of construction and procurement. In her construction practice, she represents different stakeholders in the industry, such as owners, professionals, general contractors, subcontractors and major manufacturers in matters involving construction defect...

Mr. MacInnis, K.C. is a trial and appellate lawyer. Benchmark Canada has listed Mr. MacInnis as a “Litigation Star” in British Columbia since 2012. Mr. MacInnis is recognized in Best Lawyers Canada in the fields of Corporate Commercial Litigation and Alternative Dispute Resolution. He regularly appears as counsel in the B.C. Supreme Court and Court of Appeal. Mr. MacInnis acts for corporations, both private and public, as well as individuals. Mr. MacInnis’ practice is focuse...

Audrey Gagnon practises primarily commercial litigation, civil liability and contractual liability. Audrey regularly provides legal opinions on the prevention and resolution of disputes in these areas. A seasoned litigator, Audrey also advises clients on the development and evolution of proceedings before the civil courts. She has specific expertise in professional liability and insurance companies trust Audrey to defend their clients, namely dentists, lawyers, surveyors and other professiona...

David Ziegler’s robust civil litigation and arbitration practice encompasses business-critical commercial and financial disputes, class actions, product liability matters, construction matters (including adjudications), and disputes requiring international arbitration. His vast experience acting for both Canada- and US-based companies is sought after for domestic and cross-border disputes, spanning a broad range of industries including mining, rail, professional services, insurance, ban...

Pierre Grégoire is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and Corporate and Commercial Litigation. Pierre, who practices law in Québec, Quebec, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Pierre is held by other top lawyers in the same geographic and legal practice area.

Mario Welsh is a recognized leader in the field of civil and commercial litigation, construction law and professional liability. He has appeared before every level of federal or provincial court - from the Court of Québec to the Supreme Court of Canada as well as before various administrative tribunals. He joined BCF in 2014, and has since been managing partner of the Québec office. Mario excels in several other areas of law, including class actions. He has been involved in some...

Rick practices in insurance defence work primarily in the area of professional liability with a focus on the defence of architects, engineers and accountants as well as general insurance defence litigation. Rick also acts on behalf of financial institutions and their clients.

Oliver concentrates his practice on complex business disputes and time-sensitive bet-the-company commercial matters. Public and private corporations, partnerships, shareholders, directors, officers, boards, and others seek him out for a wide range of litigation matters affecting businesses in every industry. He has a strong record of delivering winning results in matters involving director and officer liability, media and defamation issues, corporate governance and shareholder rights disputes...

Fabrice L. Coulombe is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law and Corporate and Commercial Litigation. Fabrice L., who practices law in Montréal, Quebec, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fabrice L. is held by other top lawyers in the same geographic and legal practice area.

Christopher Wirth is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative and Public Law, Corporate and Commercial Litigation and Labour and Employment Law. Christopher, who practices law in Toronto, Ontario, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

Megan is a Partner in the Verjee Law Litigation & Dispute Resolution Group, which encompasses a range of commercial litigation matters from general commercial and contract issues to shareholder and partnership disputes as well as administrative and employment law matters. Megan has appeared before the Provincial Court of Alberta, the Court of King’s Bench of Alberta and the Alberta Court of Appeal. Megan has over 20 years of vast experience in the area of insurance law and provides ...