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Criminal Defence Lawyer
Calgary, Alberta
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Sean Fagan is a dedicated criminal defence lawyer based in Calgary, Alberta, known for his unwavering commitment to representing individuals charged with serious criminal offences. Raised in an environment deeply rooted in criminal law, Sean was immersed in the discipline and strategy of defence work from a young age. As the son of one of Calgary’s most respected criminal defence lawyers, he developed a passion for criminal law early on, channelling this into a career that has focused exclusively on representing the accused in high-stakes, complex cases. Sean distinguished himself early in his legal studies, winning the Faculty of Law Trial Advocacy Championship, taking first place at the MacIntyre Cup, and medalling at the Sopinka Cup, Canada’s national trial advocacy finals. His dedication to criminal law is reflected in his singular focus: he has never practised in any area other than criminal defence. This narrow and deep approach has allowed Sean to build expertise in defending charges such as assault, drug trafficking, firearms offences, and even murder, appearing in courtrooms across the country. His achievements include leading one of the most significant criminal cases in Canadian history at the Supreme Court of Canada, where he secured a full acquittal and contributed to striking down a 30-year-old law. Sean’s practice is intentionally low-volume and highly selective, ensuring each client receives the strategic attention they deserve. He is known for working tirelessly to deliver results and for choosing cases on a case-by-case basis, maintaining high standards of advocacy and care for his clients.
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5 reviews
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Sean Fagan Law was exceptionally responsive and demonstrated genuine empathy and flexibility in handling my situation. I appreciated the professionalism and the considerate way the matter was addressed. Their approach made a difficult process much easier to navigate. Jennifer and Richard Villeneuve
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He has been the David to my Goliath, the Harry Potter to my Voldemort, and the Rocky to my Ivan Drago — but in real life he goes by Devlin Gavigan. No cape. No superpowers. Just sharp strategy, steady nerves, and the ability to save my ass time and time again. For three years he has consistently shown up and shown out. He took what was one of the scariest, most overwhelming experiences of my life and made it feel manageable and a lot less daunting. Some say he’s a “Godsend.” Others say he’s just “a really great Google search result.” Honestly? I don’t care what you call him but he’s saved in my phone as “Boy Wonder” for a reason. If you’re looking for someone brilliant, strategic, and unshakable when it counts — he’s your guy.
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When a loved one was facing traumatic charges, Sean picked up right away and assured that we would be fine. He was true to his word. Not only is Sean an incredibly lawyer, he is deeply caring about his clients. If the world had more people like Sean, it would be a better place. Sean mentioned that we would be in good hands, and we were, and so will you if you need a lawyer. Thank you Sean, Paula, Devlin, and everyone in your firm.
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I am truly grateful to Mr. Fagan for his outstanding work on my case. From the very beginning, he was professional, honest, and reassuring. He carefully explained every step, always kept me informed, and made sure I understood my options. In court, his expertise and dedication were clear, and thanks to his strong defence, we achieved a successful outcome. Even after winning the case, Mr. Fagan kindly offered to help us in the future with anything related to this matter, which shows the level of care and commitment he has for his clients. I highly recommend Mr. Fagan to anyone in need of a skilled and trustworthy defence lawyer. His knowledge, professionalism, and dedication are second to none.
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I recently had the pleasure of working with Sean Fagan and their team, and I can't recommend them enough! I am incredibly grateful for his expertise. Right from the beginning he took the time to understand my situation and concerns and explained the legal concept clearly. He is very professional, knowledgeable, and compassionate. Sean Fagan answered all my questions, guided me and kept me informed throughout the entire process. Sean Fagan and his team helped me navigate a complex legal issue. What impressed me most was their dedication to their clients' well-being and their commitment to delivering top-notch legal services. Sean Fagan and his associates genuinely care for their clients. If you're seeking exceptional legal representation, look no further than Sean Fagan and their team. They are truly exceptional!
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This listing was compiled from publicly available sources and has not been confirmed by the lawyer. Source: Google Places. Last checked 2026-09-11.
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