About

John Francis Dunn is a seasoned attorney at Cozen O’Connor with more than 32 years of experience advising clients on complex legal matters involving antitrust and trade law, life sciences and biotechnology, and real estate. Based in Chicago, he provides strategic counsel to businesses navigating highly regulated and competitive industries, drawing on decades of experience to help clients address risk, protect their interests, and move forward with confidence. His practice is grounded in a deep understanding of the legal and commercial challenges that can affect companies at every stage of growth. With a professional, solutions-oriented approach, Mr. Dunn works closely with clients to develop practical strategies tailored to their business objectives. In antitrust and trade matters, he helps organizations understand and respond to regulatory scrutiny and competition-related issues. In the life sciences and biotechnology space, he advises clients operating in innovative and evolving sectors where legal guidance must keep pace with scientific and commercial developments. His real estate practice further reflects a broad-based understanding of transactions and property-related concerns that demand careful attention to detail and sound judgment. Known for his thoughtful counsel and commitment to client service, John Francis Dunn brings clarity, responsiveness, and experience to each matter he handles. At Cozen O’Connor, he is dedicated to helping clients make informed decisions and achieve practical legal solutions in a complex business environment.

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