Karen M. McArthur is a Toronto-based criminal defence lawyer who has practised since the early 1990s, handling matters across the Greater Toronto Area including Newmarket, Brampton, Hamilton, and St. Catharines. Her practice covers criminal matters such as murder, drug offences, assault, sexual assault, fraud, and firearms charges, as well as regulatory and discipline proceedings before bodies such as FSCO, the OSC, and RECO. She also represents athletes, coaches, and organizations in sports-related disciplinary hearings and appeals.

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