Lexpert Magazine

November 2025 Litigation

Lexpert magazine features articles and columns on developments in legal practice management, deals and lawsuits of interest in Canada, the law and business issues of interest to legal professionals and businesses that purchase legal services.

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www.lexpert.ca 93 Williams, Matthew G. Thorsteinssons LLP > (416) 864-9104 mgwilliams@thor.ca Matthew Williams has a practice that focuses on all aspects of taxpayer representation. He has appeared before the Tax Court of Canada, the Federal Court of Canada, the Federal Court of Appeal, the Ontario Superior Court, the Ontario Court of Appeal, and the Supreme Court of Canada on a wide range of issues. He has been recognized by Lexpert as a Most Frequently Recommended Corporate Tax Litigator and was included in the 2021 Lexpert Special Edition: Canada's Leading Litigation Lawyers. He has been recognized as a leading tax dispute resolution lawyer in the International Tax Review, named among The Best Lawyers in Canada by Best Lawyers International (including being named Lawyer of the Year 2022 for tax law in Toronto, Ontario), is peer-rated by Martindale-Hubbell as a "preeminent lawyer," and is ranked by Chambers Canada and Chambers Global. Wilson, Christopher S. Norton Rose Fulbright Canada LLP > (604) 641-4841 chris.wilson@nortonrosefulbright.com Chris Wilson acts as lead counsel in Canadian trademark, copyright, patent and trade secrets litigation, at trial and on appeal. His cases include precedent-setting decisions dealing with topics such as Internet keyword advertising and domain names, the constitutionality of Canada's official marks regime, contempt for violation of an intellectual property injunction, and one of the largest monetary judgments for breach of confidence in Canadian history. In his practice, Wilson manages the intellectual property needs of multinational and local clients across numerous industries, including alcoholic beverages, software and video games, consumer products, traditional and e-commerce retailers, public authorities and regulatory bodies, financial services, natural resources, and many others. His practice focuses on enforcement and disputes, including trademark actions and appeals from the Trademarks Opposition Board, patent infringement and ownership disputes, software disputes, copyright and industrial designs, parallel imports (grey marketing), and all manner of issues relating to the Internet, including dealing with defamatory statements and conduct on the Internet and social media. Wisner, Robert McMillan LLP > (416) 865-7127 robert.wisner@mcmillan.ca Robert Wisner is a litigation partner at McMillan LLP and its Co-Leader, International Arbitration. His practice focuses on international dispute resolution and corporate litigation. Robert has argued numerous cases before arbitral tribunals seated in venues throughout Canada, the United States, Asia and Europe. He has also appeared at all levels of court in Ontario and other Canadian jurisdictions. Many of Robert's cases have involved matters of international law, including disputes relating to foreign investment protection, the jurisdiction of Canadian courts and the enforcement of arbitral awards and foreign judgments. He has also handled a wide range of disputes relating to corporate governance, shareholder remedies or complex commercial contracts, including M&A, joint venture, shareholder, supply and services agreements. Legal directories have consistently recognized Robert's work in international arbitration, cross-border business litigation and disputes relating to the global mining sector. Many of Robert's clients are involved in the mining, energy, aviation, infrastructure or telecommunications sectors. He has assisted clients seeking litigation financing as well as leading litigation funders conducting due diligence on potential claims. Wojtyra, Urszula Smart & Biggar > (416) 593-5514 uwojtyra@smartbiggar.ca Urszula Wojtyra, a principal in Smart & Biggar's Toronto office, practises in the field of life sciences, including pharmaceuticals and biologics, and is a key member of the firm's litigation team. When representing innovative pharmaceutical and biopharmaceutical companies in patent litigation, Urszula offers a unique ability to tell the story behind highly technical inventions in a clear, concise, and convincing way before the courts. Clients benefit from and appreciate the combination of her advanced technical expertise, incisive courtroom advocacy skills, and effective long-term strategic planning of their complex litigation matters. Her technical expertise in biochemistry, chemistry, molecular biology, immunology, and genetics further empowers Urszula to effectively advise and represent her clients. Urszula practises in the field of life sciences including pharmaceuticals and biologics. She regularly represents clients in patent infringement and validity actions, including under the Patented Medicines (Notice of Compliance) Regulations, before both the Federal Court and the Federal Court of Appeal of Canada. Lexpert-ranked leading litigation lawyers

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