Department profile
Arnold & Porter

Litigation: White-Collar Crime & Government Investigations

USA Guide 2026 : District of Columbia


Arnold & Porter

Rankings

Chambers Review

Provided by Chambers

Litigation: White-Collar Crime & Government Investigations - District of Columbia

Band 2

Band 2


What the Team is Known For

Arnold & Porter's versatile litigation practice is heavily involved in both trials and investigations in the areas of healthcare fraud, criminal antitrust and government contracts, with additional substantive expertise on the civil side. The team has considerable expertise in securities matters and is experienced in representing clients before US regulatory authorities, including the DOJ and SEC, and foreign government bodies such as the UK Serious Fraud Office. Its broad client base includes pharmaceutical, industrial and financial services companies, along with individual executives, public officials and healthcare professionals.

Work Highlights

Provided by Chambers

  • Arnold & Porter represented Leila Vespoli, former Chief Legal Officer of FirstEnergy Corp., in a federal securities class action involving alleged violations of the Exchange Act.

Strengths

Provided by Chambers

  • Arnold & Porter is excellent at every level, the senior partners have been thoughtful, incisive and effective throughout the process.

    Litigation: White-Collar Crime & Government Investigations respondentUSA
  • Arnold & Porter handled the most complicated internal investigations for me, the firm has excellent lawyers with speed and intelligence.

    Litigation: White-Collar Crime & Government Investigations respondentUSA
  • Arnold & Porter brings expert knowledge to key relevant issues, the firm's depth is amazing.

    Litigation: White-Collar Crime & Government Investigations respondentUSA

Notable Practitioners

Provided by Chambers

  • Band 2John Nassikas
    Band 2John Nassikas

    John Nassikas

    John Nassikas is a Washington, DC-based partner at Arnold & Porter. He represents a range of corporate entities and individual executives, with an impressive portfolio of corporate and government clients. He frequently handles governmental and regulatory investigations and related enforcement proceedings.
    • There have been a number of cases where John has gone toe to toe with the government and challenged things other lawyers would have gone along with.

      Litigation: White-Collar Crime & Government Investigations respondentUSA
    • John is a really seasoned and experienced lawyer.

      Litigation: White-Collar Crime & Government Investigations respondentUSA
  • Band 4James W Cooper
    Band 4James W Cooper

    James W Cooper

    James Cooper is a partner at Arnold & Porter and an experienced white-collar practitioner noted for his extensive expertise in criminal antitrust and corporate enforcement actions.

  • Band 5Craig D Margolis
    Band 5Craig D Margolis

    Craig D Margolis

    Craig Margolis is noted for his FCA and government contracts expertise. He is regularly called upon to assist with internal investigations, compliance and corporate enforcement.

    • Craig has really good judgement, he knows when to be aggressive and when not to.

      Litigation: White-Collar Crime & Government Investigations respondentUSA
  • Band 6Deborah Curtis
    Band 6Deborah Curtis

    Deborah Curtis

    Deborah Curtis, co-chair of the firm's white-collar defense & investigations department, wins acclaim for her expertise advising clients on cases derived from national security matters, with particular expertise in the Espionage Act.

    • She has a deep experience at the highest level of the intelligence community.

      Litigation: White-Collar Crime & Government Investigations respondentUSA
    • We believe Deb is the best lawyer for addressing issues where national security and business intersect. She is an expert in sanctions, export controls and other national security related areas.

      Litigation: White-Collar Crime & Government Investigations respondentUSA

Ranked Individuals at Arnold & Porter (4)

District of Columbia

  • Profile image of John Nassikas

    John Nassikas

    Litigation: White-Collar Crime & Government Investigations

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  • Profile image of James W Cooper

    James W Cooper

    Litigation: White-Collar Crime & Government Investigations

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  • Profile image of Craig D Margolis

    Craig D Margolis

    Litigation: White-Collar Crime & Government Investigations

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  • Profile image of Deborah Curtis

    Deborah Curtis

    Litigation: White-Collar Crime & Government Investigations

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