James P. "Jim" O'Sullivan

James P. "Jim" O'Sullivan

Business Organizations (including LLCs and Partnerships) Closely Held Companies and Family Businesses Law Mergers and Acquisitions Law
Recognized Since Recognized in Best Lawyers since 2013

About James

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Reviews

4.4 / 5

0 Reviews

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Carlos Rodriguez

Jan 03, 2026

Always Available and Clear in Our Complex Merger

When our family-owned manufacturing business was navigating a merger with a larger competitor, Jim's responsiveness was exceptional. He consistently returned calls and emails within hours, even during...

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Priya Sharma

Jan 03, 2026

Unmatched Knowledge in LLC Formation and Structure

Jim's expertise in business organizations is simply unparalleled. As a tech startup founder, I needed to establish an LLC with complex ownership and profit-sharing arrangements among multiple investor...

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Marcus Johnson

Jan 03, 2026

Secured a Favorable Settlement in Our Business Divorce

After years of partnership disputes threatened to dissolve our successful marketing agency, Jim guided us to a resolution that exceeded expectations. Through skilled negotiation and mediation tactics,...

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Eleanor Chen

Jan 03, 2026

Compassionate Guidance Through Family Business Succession

Navigating my father's retirement from our generational restaurant business was emotionally challenging. Jim showed remarkable compassion while addressing the legal complexities of ownership transfer....

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Robert Fitzgerald

Jan 03, 2026

Exemplary Professionalism as Local Counsel in Acquisition

As an out-of-state attorney representing a client acquiring an Arizona-based company, I engaged Jim as local counsel. His professionalism was outstanding—he seamlessly integrated with our team, provid...