LAWYER PROFILE
Lonny Rosen

Lonny Rosen

Canada 2027

Chambers ranking badge
Chambers ranking badge

Ranked in 2 practice areas

About

Provided by Rosen Sunshine LLP

Canada

Practice Areas

LONNY ROSEN was called to the Ontario Bar in 1998 and has over 25 years of experience in the area of professional regulation. He is certified by the Law Society of Ontario as a Specialist in Health Law. In addition to serving as ILC for several regulators, Lonny is regularly involved in assisting clients with complaint and discipline matters, investigations, audits and peer reviews and hearings before various tribunals. Lonny advises individual and institutional clients on a wide variety of regulatory issues, including issues with respect to legislation, policies, protocols and guidelines. Lonny has represented registrants (as well as complainants in third party records motions) in proceedings before the discipline committees of many regulators (including the CNO).

Professional Memberships

Since 2019, Lonny has been a member of Osgoode Hall Law School’s Adjunct Faculty, teaching Health Law. Lonny is a member of the governing council of the Medico-Legal Society of Toronto. He has served as a member of the Board of Directors of The Advocates’ Society, and as chair of the Health Law Sections of both the Canadian Bar Association and Ontario Bar Association. For six years, Lonny served as a member of the Hospital for Sick Children’s Research Ethics Board. Lonny frequently writes and speaks on health and regulatory law issues.

Awards

Best Lawyers 2015 - 2027

Canadian Legal Lexpert Directory

2026

the OBA Susan Hilary Davidson Memorial Award for Excellence in Health Law

Ontario Bar Association

2016

Chambers Review

Provided by Chambers

Chambers Canada Guide

Healthcare: Corporate/Commercial & Regulatory - Nationwide - Canada

Band 3
Band 3

Individual Editorial

Toronto-based Lonny Rosen regularly represents healthcare professionals in disciplinary proceedings and privileges disputes. He also provides advice to clients on legislation and healthcare policy.

Healthcare: Contentious - Nationwide - Canada

Band 4
Band 4

Individual Editorial

Toronto-based Lonny Rosen regularly represents healthcare professionals in disciplinary proceedings and privileges disputes. He also provides advice to clients on legislation and healthcare policy.

Strengths

Provided by Chambers

  • Lonny is very good at client management.

    Healthcare: Corporate/Commercial & RegulatoryChambers Canada Guide
  • Lonny is highly emotionally intelligent. He is thoughtful and an excellent listener.

    Healthcare: Corporate/Commercial & RegulatoryChambers Canada Guide
  • Lonny is highly knowledgeable in the area. Clients trust him because he understands them and is an excellent listener.

    Healthcare: Corporate/Commercial & RegulatoryChambers Canada Guide
  • Lonny is one of the leading experts in professional regulation and health law. He provides effective and efficient advice.

    Healthcare: Corporate/Commercial & RegulatoryChambers Canada Guide
  • Lonny is a terrific lawyer. He is practical, strategic and cares very much about the outcome for his clients.

    Healthcare: Corporate/Commercial & RegulatoryChambers Canada Guide

Ranked Individuals at Rosen Sunshine LLP (3)

Nationwide - Canada

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