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O’Sullivan Estate Lawyers LLP is a boutique law firm that concentrates exclusively on trust and estate law, offering estate planning, estate administration, and dispute resolution, including cross-border and multijurisdictional matters. With more than 27 years of experience, they provide bespoke, high-touch solutions for high-net-worth individuals and complex estates, including Canada–U.S. planning and administration. The firm emphasizes thought leadership and recognition in leading legal directories while delivering discreet, personalized service in a domestic and cross-border context.
AI named O'Sullivan Estate Lawyers in December 2025.