O'Brien Devlin MacLeod is a Calgary criminal defence and civil litigation firm that has served Calgary since 1977. Its lawyers handle criminal defence, medical malpractice, personal injury and motor vehicle accident cases and have appeared at all levels of court in Alberta and at the Supreme Court of Canada.

Good to know

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This firm’s lawyers at a glance

Called to the bar
1977 · median 49 years in practice 1 of 3 lawyers
Law schools
University of Windsor (2), University of British Columbia 3 of 3 lawyers

Where to find them

#1310, 530 - 8th Avenue S.W., Calgary, AB T2P 3S8 · 403-265-5616

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