Glenn Grenier

Lonny Rosen is a founding partner of the Toronto, Ontario health and regulatory law firm Rosen Sunshine LLP. He has been certified by the Law Society of Ontario as a Specialist in Health Law. Lonny advises on a wide variety of health and regulatory law issues. His clients include health care professionals, administrators of health care facilities, professional associations, and individuals. He represents clients in a range of civil and administrative proceedings, including in complaint and di...

Sylvia Adriano is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Sylvia practices law in Toronto, Ontario Best Lawyers has recognized Sylvia Adriano since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Sylvia Adriano is held by other lawyers.

Executive Summary Gavin Tighe is a senior partner with Gardiner Roberts LLP and a member of the firm’s Executive Committee. Mr. Tighe is certified by the Law Society of Upper Canada as a Specialist in Civil Litigation and has appeared as lead counsel at all levels of Canadian Courts including the Supreme Court of Canada. He has significant experience successfully representing clients before securities industry tribunals in both Canada and the United States. Mr. Tighe also acts as counse...

Simon Lam is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Simon practices law in Toronto, Ontario Best Lawyers has recognized Simon Lam since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Simon Lam is held by other lawyers.

Becky Potter is a seasoned tax litigator and a partner based out of the firm’s Toronto office. Becky brings a strategic and practical approach to tax disputes, and is known for her ability to distill complex technical tax matters down to their core principles. Using her honed advocacy skills and breadth of tax knowledge, Becky has successfully represented clients at every level of court both provincially and federally, including a landmark win at the Supreme Court of Canada. In addition...

Matthew Gardner B.Sc. (Hons.), LL.B., is a Partner at Willms & Shier Environmental Lawyers LLP and is a Certified Specialist in Environmental Law by the Law Society of Ontario. Matthew practices environmental law and environmental litigation. He provides advice and solutions about environmental due diligence and compliance to a wide range of clients including industrial corporations, the construction and land development sectors and municipalities. Matthew also provides advice and solutio...

Joseph Markson ’s practice is directed to the defence of individual and corporate clients in criminal and regulatory litigation. His practice areas are criminal and regulatory law, tax evasion and white-collar crime, and the law of policing and professional discipline. He has extensive experience successfully conducting criminal and quasi-criminal trials, regulatory and professional discipline hearings, appeals, advisory work, and witness representation. Joseph was selected by his peers...

Russell Dufault practises in all areas of transactional banking and corporate finance matters, with an emphasis on cross-border and multi-jurisdictional structured financings. Russell's experience includes acting for domestic and international commercial banks, non-bank financial institutions, alternative and private credit providers, private equity funds and sponsors, as well as corporate borrowers and issuers, in connection with senior and subordinated debt, asset-based and cash flow facili...

David has been practising exclusively in the area of family law and child protection since being called to the Ontario Bar in 2014. David joins Frenkel Tobin having previously spent time at a boutique family law firm where he gained experience in all aspects of family law. Prior to his career in law, David worked in the financial industry as a mutual fund compliance officer. This experience provided him with a thorough understanding of financial instruments. David represents clients at all le...

An exceptional litigator with ‘all the elements of a good lawyer’, Crawford combines expertise with strategy to represent clients in corporate and commercial litigation, regulation, securities, professional liability, energy proceedings, insurance, competition litigation, public and administrative law, with substantial expertise in class actions. He has significant experience engaging complex disputes that demand subject-matter experience involving specialized and highly regulated...