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Joseph J. Markson

Dedicated criminal defense attorney.

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Joseph J. Markson is an attorney based in Toronto, ONTARIO. The practice focuses on Criminal Defense. Currently practicing at Markson Law Professional Corporation.

Based in
Toronto, ONTARIO
Experience
attorney
Known for
Criminal Defense
  • Handles Criminal Defense matters from Toronto, ONTARIO.
  • Recognized with Best Lawyers in America — Criminal Defence (2026).

About Joseph J. Markson: Joseph J. Markson is an attorney based in Toronto, ONTARIO. The practice focuses on Criminal Defense. Currently practicing at Markson Law Professional Corporation.

Areas of practice

Practice focus

Joseph J. Markson represents clients across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About Joseph J. Markson

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 for inclusion in The Best Lawyers in Canada 2020 for his work in Criminal Defence. He is a Fellow of the International Academy of Trial Lawyers, an organization of preeminent trial lawyers from the United States, Canada, and more than 30 countries. Fellowship in the Academy is by invitation only, and trial lawyers become Fellows only after a careful screening process, which includes both peer and judicial review. He is a former Director of The Advocates’ Society (2014-2018) and an Honorary Overseas Member of the Commercial Bar Association of England and Wales. Joseph is President and a Past-Scholar of The Harold G. Fox Education Fund.

Joseph’s individual clients are professionals, first responders, and persons for whom a criminal or regulatory investigation, prosecution or conviction may jeopardize their employment, professional and personal reputations, and ability to travel. He advises and represents corporations, professional service firms, and their directors, officers, senior employees, and partners. Joseph is routinely retained to direct internal investigations and to navigate interactions with the police and investigative agencies where there is possible criminal or regulatory law exposure. He works with teams of counsel to solve the challenges posed by national and cross-border criminal and regulatory investigations and prosecutions. Joseph advises civil tax counsel and acts for clients under investigation for or charged with domestic and offshore tax evasion by the Canada Revenue Agency.

Joseph brings to the practice his expertise as a federal prosecutor. Appointed in 1995, he is an Agent of the Public Prosecution Service of Canada. He has an extensive trial, jury trial, and search warrant and wiretap experience and has prosecuted numerous major complex cases involving organized crime, tax evasion, white-collar crime, proceeds of crime, regulatory, cross-border and Controlled Drugs and Substances Act offences.

Joseph has extensive experience acting for police officers in investigations by the Ontario Special Investigations Unit and facing criminal and Police Services Act investigations and charges. He is counsel to the Ontario Provincial Police Association, police associations in the Greater Toronto Area and across Ontario, the Toronto Police Service Senior Officers’ Organization and Peace Officers in the Legislative Assembly of Ontario. He has acted for the Ontario Association of Chiefs of Police, members of police services boards and police services. He advises on law of policing issues and represented the Police Association of Ontario in its submissions to the Independent Police Oversight Review conducted by Justice Tulloch.

Credentials

Education

  • Belfast (Queen's University) Law School

    LL.B. · 1989

  • University of Cambridge Faculty of Law

    LL.M · 1991

Jurisdictions

Bar admissions

  • Ontario, Ontario Bar

    ACTIVE

Recognition

Awards & honors

  • Best Lawyers in America — Criminal Defence

    2026

Locations

Office locations

Main office

Markson Law Professional Corporation

365 Bay Street, Suite 811

Toronto, Ontario

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Frequently asked

Common questions

  • What areas of law does Joseph J. Markson practice?

    Joseph J. Markson focuses on Criminal Defense.

  • Is Joseph J. Markson a verified attorney?

    Joseph J. Markson's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with Joseph J. Markson?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 416-366-0050.