Michael J. O'Shaughnessy is a solo criminal defence lawyer in Brockville, Ontario, the county seat of the United Counties of Leeds and Grenville. He has practised in the courts of Eastern Ontario since being called to the Bar of the Supreme Court of Ontario in 1977, and his office is located in the core of historic downtown Brockville.

Practice areas

Good to know

A person using a wheelchairWheelchair accessibleA calendar with a checkmark beside a clockBy appointment

Where to find them

17 Court House Square, P.O. Box 2121, Brockville, Ontario K6V 3X3 · 613-342-2010

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Listing compiled from the firm’s public website in July 2026. Verify licence status in the Law Society of Ontario directory ↗