PRESS RELEASE
9 June 2025

Arnold & Porter’s Top-Ranked False Claims Act Investigations & Defense Practice Is Recognized By Chambers USA 2025

AP
Arnold & Porter

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Arnold & Porter is a firm of more than 1,000 lawyers, providing sophisticated litigation and transactional capabilities, renowned regulatory experience and market-leading multidisciplinary practices in the life sciences and financial services industries. Our global reach, experience and deep knowledge allow us to work across geographic, cultural, technological and ideological borders.
Arnold & Porter’s False Claims Act Investigations & Defense practice maintained its Band 1 ranking in the...
United States

Arnold & Porter’s False Claims Act Investigations & Defense practice maintained its Band 1 ranking in the Nationwide: False Claims Act category for its strength across the full spectrum of FCA litigation, investigations, and disclosure work, including intervened and non-intervened qui tam actions.

Chambers USA also again recognized practice co-chairs Tirzah Lollar, Craig Margolis, and Michael Rogoff for their sophisticated FCA expertise in representing clients across a wide range of industry sectors, from government contractors to high tech to life sciences companies. Additionally, Chambers USA has once again recognized Christian Sheehan for his excellent work in FCA investigations and litigation.

One client remarked, “Arnold & Porter has the foremost experts on the FCA, its history and appropriate defenses. I consider the team to be the best in the business when it comes to FCA work.” Another commented, “The team are thoughtful, methodical and proactive. They understand how to frame their analysis and recommendations in a way that can be implemented and how best to advocate for quick resolution.” We are grateful to our clients who continue to trust us with their most complex and contentious FCA matters. For more information on our practice, please visit: False Claims Act Investigations & Defense.

The 2025 edition of Chambers USA named Arnold & Porter a “Leading Firm” in 70 practice areas across the nation and recognized 127 lawyers as “Leading Individuals.” The full list of our firm’s rankings is available for review.

Contributor

Arnold & Porter is a firm of more than 1,000 lawyers, providing sophisticated litigation and transactional capabilities, renowned regulatory experience and market-leading multidisciplinary practices in the life sciences and financial services industries. Our global reach, experience and deep knowledge allow us to work across geographic, cultural, technological and ideological borders.

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