Lonny J. Rosen, C.S.

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 discipline matters, investigations, audits and peer reviews, hospital privileges disputes and in hearings before various health tribunals. He also serves as independent legal counsel to Discipline Committees of professionals’ governing bodies.

From 2012 until his term expired in 2022, Lonny was a Senior Lawyer Member of the Consent and Capacity Board. He has served as Chair of both the OBA and CBA Health Law Sections and was a Director of The Advocates’ Society. He is a member of the governing council of the Medico-Legal Society of Toronto. He frequently writes and speaks on health law issues and is an Adjunct Professor of Osgoode Hall Law School, teaching Health Law. In June 2016, Lonny was named the inaugural recipient of the OBA Susan Hilary Davidson Memorial Award for Excellence in Health Law.

Lonny was included in the Canadian Legal Lexpert Directory as “Repeatedly Recommended” for Life Sciences & Health and “Consistently Recommended” for Professional Liability. He was named to “Best Lawyers in Canada” for Health Care Law every year since 2014 and since 2020 has been included in Who’s Who Legal as a Global Leader in Health Care Law, receiving the ranking of “Recommended”, as well as in Chambers Canada Guide 2022 in Healthcare: Contentious - Nationwide – Canada.