James M. Regan KC

Sarah Boyle is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Sarah, who practices law in Toronto, Ontario, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sarah is held by other top lawyers in the same geographic and legal practice area.

Richard Austin is a top attorney recognized by Best Lawyers in the practice area(s) of Information Technology Law, Privacy and Data Security Law and Technology Law. Richard, who practices law in Toronto, Ontario, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Richard is held by other top lawyers in the same geographic and legal practice area.

Al is a partner practising in the areas of corporate and securities laws with an emphasis on corporate finance and mergers and acquisitions, as well as advising in respect of securities regulatory compliance matters. Al acts as counsel to both issuers and investment dealers. Al regularly advises public and private issuers, dissident shareholders, directors and officers, chairpersons of contested meetings, and special committees of an issuer’s board of directors on the legal and strategi...

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...

Len is the Chair of our Commercial Real Estate Group. His commercial real estate practice spans a broad spectrum of real estate matters from development to secured lending to leasing to cost-sharing. Len’s clients benefit from his wide ranging depth of knowledge and experience: he knows how the other side thinks, and the best way to act or react. His experience in coordinating a legal team, smoothly conducting all due diligence matters, including title and off-title searches, lease revi...

Brittany Sud’s practice focuses on estates and trusts, including both planning and administrative matters, as well as taxation as it relates to those areas. Brittany has developed and implemented cohesive estate plans for clients, reflecting their financial objectives and both short and long-term goals. She advises high net worth individuals, entrepreneurs and professionals on probate planning, income tax deferral and minimization strategies, family business succession planning, disabil...

Sarah Boulby of Boulby Weinberg LLP is a seasoned family law lawyer with over 30 years of experience. She advises clients in Ontario and globally on complex support, property, and parenting matters. Sarah is skilled in negotiation, litigation, mediation, and arbitration, providing comprehensive legal representation. Sarah is a sought-after speaker and writer on family law topics. Her expertise has been recognized by the Law Society of Ontario, which uses her educational materials in its licen...

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...

Ron Nobrega’s practice is focused on domestic and international corporate taxation, including mergers, acquisitions, financings, divestitures, reorganizations and international tax planning. Ron works with issuers and underwriters in debt and equity offerings. He regularly works with clients in diverse industries in planning Canadian and international investments and business expansions. He frequently advises on the application of tax rules relating to foreign affiliates, offshore inves...

Peter Downard is a senior litigator and leading practitioner in the area of defamation. With extensive experience acting as defamation counsel throughout litigation proceedings, he has appeared before the Supreme Court of Canada, Ontario Court of Appeal for Ontario, trials and numerous mediations and advisory matters. Peter also has comprehensive experience in commercial litigation and alternative dispute resolution. Peter is the author of The Law of Libel in Canada , referred to as an author...