Covering a broad range of international litigation areas, Arnold & Porter showcases standout strength in government-facing litigation and sovereign-related disputes. Counting national governments, global corporates, international organizations and executives within its client roster, the firm frequently deals with multidistrict litigations including ATA, TVPA, ATS and FSIA. New York-based co-head Marcus Asner is a go-to advisor for white collar investigations and enforcement matters. In Washington DC co-head Deborah Curtis is a prominent player in white-collar criminal and regulatory litigation, advising corporates and financial institutions on DOJ investigations, national-security-driven enforcement, and congressional inquiries. With particular strengths in technology, energy and life sciences disputes, San Francisco-based Maria Chedid routinely advises on disputes with sovereign or public-law elements. In Houston Christopher Odell is a key port of call for clients in the energy, healthcare and aviation industries. Amy Jeffress departed the firm in February 2025.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®
Key clients
- Samsung Heavy Industries Co., Ltd. (SHI)
- Carnival Corporation
- POSCO Energy
- Republic of Korea (South Korea)
- Czech Republic
- Republic of Panama
- Pfizer
- AstraZeneca
- Sotheby’s
- Sweden
- Turkey
Work highlights
Represented Peru in an ICSID arbitration filed by Worth Capital Holdings 27 LLC under the U.S.-Peru Trade Promotion Agreement.
Obtained a favourable settlement from the Department of Justice for our client Lisa Page for violations of the Privacy Act in connection with the release of her text messages collected during a DOJ Inspector General investigation of her role in the investigation of Secretary Clinton’s email practices.
Represented Sotheby’s in an extensive investigation in the SDNY, and continues to lead Sotheby’s global investigation, law enforcement and litigation efforts.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
Maria Chedid; Kenneth Chernof; James Herschlein; Marcus Asner; Deborah Curtis
Other key lawyers
Christopher Odell
