Wisener Law
Automatically compiled listing. Details may contain errors.1 lawyer · York Region
One of 202 law firms listed in Markham, and one of 18 handling Criminal Defence.
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Free consultationAbout Wisener Law
Wisener Law is a solo criminal defence practice based in Markham, Ontario, run by lawyer Sheldon Wisener. Wisener was called to the bar in 1986 and has spent decades in courtrooms across York Region, Toronto, and southern Ontario, handling charges that range from theft, fraud, and drug trafficking to assault, sexual assault, and more serious matters such as attempted murder.
Before turning to defence work, Wisener spent 16 years as a part-time Assistant Crown Attorney in Newmarket, prosecuting many of the same kinds of cases the firm now defends. Wisener has also served as a Director of the Criminal Lawyers Association of Ontario, sat on the board of the York Region Law Association, and was appointed in 2003 to the Personal Rights Panel of the Office of the Children's Lawyer. The office on Crown Steel Drive serves as the firm's Markham base, though the practice regularly travels to courts in Newmarket, Milton, Brampton, Bradford, Barrie, Oshawa, and Toronto.
Practice areas
In the community
- Sheldon Wisener discussed the overlap between criminal law and family law, including domestic violence and child abduction cases, in a November 2022 podcast episode.
- Wisener joined lawyer Garry Wise for a recorded discussion on how the COVID-19 pandemic was affecting the criminal justice system in Ontario.
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Where to find them
20 Crown Steel Drive, Suite 8, Markham, ON L3R 9X9 · 416-733-9901
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Legal AidThis listing was generated by AI from public sources in September 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗
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