Department profile
Arnold & Porter

False Claims Act

USA Guide 2026 : USA - Nationwide

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Arnold & Porter

Rankings

Chambers Review

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False Claims Act - USA - Nationwide

Band 1

What the Team is Known For
Arnold & Porter boasts a highly sophisticated FCA practice noted for its considerable depth and breadth of experience across the board. Its team consistently demonstrate the ability to handle all manner of high-profile investigations, with major clients ranging from defense contractors to pharmaceutical companies relying on their counsel.
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Work Highlights

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  • Arnold & Porter assisted Bayer and Merck with the defense of a qui tam suit, alleging misbranding of an antibiotic.

Strengths

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  • The team has knowledge of the industry and the ability to handle challenging matters.

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  • The team is routinely very quick and responsive.

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  • The team has consistently demonstrated deep-subject matter expertise, paired with a highly tactical and practical approach for handling a complex matter. Its ability to remain agile in the face of unexpected challenges has been critical.

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  • The firm excels at handling complex matters before government regulators that require sophisticated analysis and anticipation of potential pitfalls.

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  • The team has strong partners on the case but also very experienced and qualified associates who can stand on their own.

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Notable Practitioners

Provided by Chambers

  • Craig D Margolis
    Craig D Margolis

    Craig D Margolis

    Craig Margolis is noted for his considerable government contract expertise, particularly as it relates to the defense sector.

    • Craig is an industry leader in FCA knowledge and has FCA trial experience.

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    • He is one of the best litigators I have ever seen.

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    • Craig is a deeply experienced and knowledgeable practitioner in this area and provides us with the strategic guidance we need.

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  • Michael A Rogoff
    Michael A Rogoff

    Michael A Rogoff

    Michael Rogoff is highly regarded for his work in the life sciences and pharmaceutical space, where he represents a number of considerable companies facing major FCA suits.

    • Mike combines a scholar's knowledge of the law with a practical instinct for what makes sense for the client.

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    • Michael has excellent legal acumen.

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    • He is strategic and savvy and I am always happy to see him on a case.

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    • Mike is pragmatic, knows the law inside and out, and is the kind of partner you want sitting alongside you.

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    • He is a seasoned litigator and adviser.

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  • Tirzah S Lollar
    Tirzah S Lollar

    Tirzah S Lollar

    Tirzah Lollar is noted for her FCA expertise, both in investigations and litigation. She is recognized for her considerable scope of experience when it comes to healthcare fraud matters.

    • Tirzah is a thoughtful and energetic outside counsel with deep subject matter expertise, who can be relied upon to provide a high level of client service.

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    • Tirzah is responsive, aware of our needs and concerns, and is doing an excellent job managing the matter.

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    • Tirzah is a fantastic resource.

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    • She is a top-notch lawyer.

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  • Christian Sheehan
    Christian Sheehan

    Christian Sheehan

    Christian Sheehan enjoys a robust reputation for his strengths within the government contracts and procurement space. He is a trusted adviser for large clients across various industries.

    • Christian is a fantastic attorney.

      False Claims Act respondentUSA

    • Christian is an incredibly talented lawyer.

      False Claims Act respondentUSA
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Ranked Individuals at Arnold & Porter (4)

USA - Nationwide

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