Seán C. O'Neill

Elyse is a partner with the law firm Rosen Sunshine LLP. Elyse assists health care professionals, health associations and organizations by providing advice and opinions with respect to regulatory, administrative and civil matters. Elyse has experience in assisting various health professionals with professional matters before their licensing bodies (including, registration, complaints, discipline, fitness, and quality assurance), hospitals, employers and the government. Elyse also assists heal...

Brian Cameron completed his LLB at Western University and was called to the Bar in 2001. He joined Oatley Vigmond in 1999 and became a partner in 2008. Brian is a Certified Specialist in Civil Litigation, and has been listed in Best Lawyers in Canada since 2017. Brian has acted as co-counsel on several cases at the appellate level in Ontario that has resulted in significant gains for Plaintiffs injured in motor-vehicle collisions in Ontario. He has been an invited speaker at conferences invol...

Brendan Bowles is devoted to providing first rate client service and advice. Since joining the firm in 1998 he has specialized in the practice of construction law. He is fortunate to be supported at Glaholt Bowles by a team of outstanding support staff, students, associates, and partners, all of whom share his dedication to client service and excellence in the practice of construction law. Brendan has experience as team leader in all manner of construction related disputes and contract issues...

Matt McPherson is a Partner at OKT. Matt advises First Nations and Indigenous governments and organizations across the country on Aboriginal and treaty rights claims and negotiations, resource development agreements, and environmental regulatory processes. He has particular experience in matters related to the protection of fisheries and water. He advises on a wide variety of environmental matters, and appears before tribunals such as the Canadian Energy Regulator and land use planning bodies...

Clients come to John for his capacity to understand their business and provide them with satisfaction and security; John considers himself not only a partner in the firm, but also a partner in his clients’ success. John prides himself on his ability to deliver his clients’ needs efficiently and with clarity. With an initial interest in Physics and a degree in Economics - partnered with years of experience dealing with business clients - John possesses the tools necessary to provid...

Jenny P. Mboutsiadis is a seasoned tax litigator with over two decades of trial experience as lead counsel. She has extensive successful experience arguing tax cases in the Tax Court of Canada, the Ontario Superior Court of Justice, the Federal Court, and the Federal Court of Appeal. Jenny provides clients with exceptional knowledge on resolving tax disputes with Canadian tax authorities, from the start of a tax audit to trial. Her practice focuses on corporate tax matters, including transfer...

Laura E. MacDonald is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Laura E., who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura E. is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Bowker is a top attorney recognized by Best Lawyers in the practice area(s) of Class Action Litigation and Insurance Law. Elizabeth, who practices law in Toronto, Ontario, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elizabeth is held by other top lawyers in the same geographic and legal practice area.

Diane A. Vieira is a partner at de VRIES LITIGATION LLP. Prior to joining de VRIES LITIGATION LLP, Diane articled at the Office of the Public Guardian and Trustee where she gained experience in estate, charity and capacity law. Diane’s practice areas include will challenges, guardianship applications, power of attorney proceedings, passing of accounts applications, administrations of complex estates, and dependant support claims. Diane obtained her law degree from Queen’s Universi...

Geoff Clarke has over 25 years of experience in investment banking, financial advisory, corporate finance and securities law. Geoff is the Leader of Miller Thomson LLP’s Mining Law practice area. Geoff represents and advises public companies, institutional investors and investment banks in securities offerings, mergers and acquisitions, corporate governance, shareholder activism, exchange sponsorships, fairness opinions, continuous disclosure, stock exchange matters, securities litigati...