Direct: (416) 507-2440
Email: johnrosen@rosenlaw.ca

John M. Rosen has practiced Criminal Law for over 52 years, representing a wide variety of clients, both individuals and corporations, in serious and complex criminal, quasi-criminal and professional discipline cases. He is recognized in Canada as one of the leading members of the Criminal Bar, and enjoys a reputation for taking on the defense of the most difficult cases.

John has appeared in all levels of court in Ontario and the Supreme Court of Canada.   He has also appeared as counsel in the British Columbia Supreme Court and Court of Appeal, the Nova Scotia Court of Appeal, the United States Federal Court (in New York City, Buffalo,

N.Y. and Harrisburg, Pa.) and the Grand Court of the Cayman Islands.

John is a recipient of the Law Society Medal (2010), the Osgoode Hall Alumni Gold Key Award for Achievement (2017), and the G. Arthur Criminal Justice Medal (2018).  He has had long associations with the Criminal Lawyers Association (Canada), the National Association of Criminal Defence Lawyers (U.S.), the Advocates’ Society (Canada) and the Canadian and American Bar Associations.  He is a retired Fellow in the American College of Trial Lawyers.

Throughout his career, John has been actively involved in Continuing Legal Education and mentorship of young lawyers. He has appeared on numerous occasions as a guest lecturer, presenter, speaker and panelist for numerous legal and non-legal organizations, associations and law schools in Canada and the United States.  Over the years, John has conducted free private seminars on cross-examination for young lawyers practicing in the Greater Toronto Area.

John M. Rosen received an LL.B. from Osgoode Hall Law School in 1968, was called to the Bar of Ontario in 1970.