Leo Caserio > Sheppard, Mullin, Richter & Hampton LLP > Washington DC, United States > Lawyer Profile
Sheppard, Mullin, Richter & Hampton LLP Offices
2099 PENNSYLVANIA AVENUE, N.W.
SUITE 100
WASHINGTON DC 20006
DISTRICT OF COLUMBIA
United States
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Leo Caserio
Work Department
Antitrust & Competition
Position
Leo Caseria is Co-Chair of both the firm’s Antitrust and Competition Practice Group and Governmental Practice and a partner in the Washington, D.C. and Los Angeles offices.
Leo represents clients in complex antitrust litigation, federal and state antitrust investigations, and government merger reviews. He has favorably resolved numerous matters for defendants at an early stage of litigation, including cases involving claims of conspiracy, monopolization, and price gouging. He has represented clients in a broad variety of industries, including cement, concrete, grocery, multifamily, automotive software, consumer electronics, fashion, beauty, and apparel.
He has been ranked as a leading antitrust lawyer by Super Lawyers, Global Competition Review’s Who’s Who Legal, and Legal 500. Leo also serves as co-chair for the Books and Treatises Committee of the 9,000 member ABA Antitrust Law Section, a position he has held since 2016.
Education
J.D., Columbia Law School, 2005, Harlan Fiske Stone Scholar
B.A., University of California, Los Angeles, 2002
Lawyer Rankings
United States > Antitrust > Civil litigation/class actions: defense
Sheppard, Mullin, Richter & Hampton LLP is well-positioned to represent domestic and multinational clients in antitrust investigations and prosecutions by the FTC and DOJ. The team has played a pivotal role in recent monopoly investigations involving big tech companies and in facilitating significant M&A transactions for its clients. Co-chair Leo Caserio’s litigation expertise has been instrumental in securing favorable outcomes in complex conspiracy trials. Fellow co-chair Ann O’Brien brings extensive experience in antitrust and white-collar crime investigations, including representing clients in federal criminal jury trials. Both attorneys are based in Washington DC.
Lawyer Rankings
Top Tier Firm Rankings
Firm Rankings
- Government > Government contracts
- Healthcare > Health insurers
- Real estate > Land use/zoning
- M&A/corporate and commercial > M&A: middle-market (sub-$500m)
- Tax > Not-for-profit (Fortune 1000 private foundations, national trade associations, and charities)
- Energy > Renewable/alternative power
- Healthcare > Service providers
- Media, technology and telecoms > Cyber law (including data privacy and data protection)
- Media, technology and telecoms > Media and entertainment: transactional
- Real estate > Real estate
- Media, technology and telecoms > Telecoms and broadcast: regulatory
- Insurance > Advice to insurers
- Antitrust > Cartel
- Environment > Environment: litigation
- Labor and employment > Labor and employment disputes (including collective actions)
- Media, technology and telecoms > Media and entertainment: litigation
- Antitrust > Merger control
- Media, technology and telecoms > Technology transactions
- Media, technology and telecoms > Telecoms and broadcast: transactions
- Antitrust > Civil litigation/class actions: defense
- Real estate > Construction (including construction litigation)
- Healthcare > Life sciences
- Intellectual property > Patents: litigation (full coverage)
- Finance > Fintech
- Real estate > Real estate finance