Debevoise & Plimpton LLP offers a small but impressive team, with a solid bench of seasoned litigators. Ted Hassi in Washington, DC and Michael Schaper in New York act as co-chairs of the antitrust and competition group, setting strategies that integrate merger control, investigations, and courtroom defense. Erica Weisgerber, working out of New York, brings sharp litigation judgment to competition matters, strengthening the group’s trial-ready approach. Based in DC, Tim Cornell advises global companies and private equity sponsors on merger reviews, civil litigation, and compliance, with a pragmatic understanding of US and international enforcement dynamics. Also based in DC, Leah Martin adds depth on regulatory-facing matters and contentious proceedings. A unified, litigation-led model allows the firm to handle disputes and transactions beyond its team’s size.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®
Key clients
- Yardi Systems Inc.
- Hector Armando Kellum (Sandoz, Inc.’s former Senior Director of Pricing and Contracts)
- TPG | LyricFind v Musixmatch
- Federation Francais de Tennis (FFT)
- National Football League (NFL) | Bluesky
- Toyota Motor Sales, U.S.A. and Toyota Canada, Inc.
- Tractor Supply
- GAF Materials LLC
- Albertsons Companies, Inc.
- Tether, Bitfinex and related entities
Work highlights
Representing Yardi in actions which allege a hub-and-spoke price fixing conspiracy between Yardi, a property management software company, and property management companies that use Yardi’s software.
Representing an individual defendant in In re Generic Pharmaceuticals Pricing Antitrust Litigation.
Representing Fédération Française de Tennis as a defendant in a class-action antitrust lawsuit brought by The Professional Tennis Players Association and several tennis players in the Southern District of New York.
Practice head
Ted Hassi; Michael Schaper
Other key lawyers
Erica Weisgerber; Tim Cornell; Leah Martin