Christopher practises corporate and commercial litigation, with a strong focus on corporate litigation, class action defence and cross-border litigation. He is a key contact for Osler’s Class Action Defence Group, and he has acted as counsel in a number of the largest and most complex class proceedings across Canada covering a broad range of tort and statutory claims, including allegations of anti-competitive conduct, securities violations, insider trading, oppression and derivative claims, misleading advertising, product liability, economic torts, as well as negligence and fraud. Christopher has extensive experience in litigating complex commercial disputes involving shareholder rights, director and officer liability, auditor’s negligence, valuation proceedings, insurance disputes, privacy and data breaches and professional liability. Christopher has also acted in a number of leading antitrust, securities and disciplinary investigations and enforcement proceedings, and he regularly acts in matters involving the Competition Bureau, the OSC, the RCMP/IMET and the IIROC. Christopher has argued cases before trial and appellate courts across the country, including the Ontario Court of Appeal, the B.C. Court of Appeal, the Federal Court of Appeal and the Supreme Court of Canada. Prior to joining Osler, Christopher served as a law clerk for the Right Honourable Antonio Lamer, Chief Justice of the Supreme Court of Canada.
Christopher is currently ranked as a leading litigation lawyer in Canada in Chambers Global: The World’s Leading Business Lawyers 2022, Benchmark Litigation Canada 2022 and The Best Lawyers in Canada 2022. In his younger days, Christopher was recognized by Lexpert as one of the “Top 40 Under 40” lawyers in Canada in 2007.