Baker McKenzie LLP

Litigation Arbitration and Dispute Resolution

Mark H. Hamer is Global Chair of the Firm's Antitrust & Competition Practice Group, comprised of over 250 competition lawyers in 60 offices across 43 countries. Before 2020, he served as its North America Chair.

Mark's practice spans across all types of antitrust matters, from high-stakes litigation to strategic merger clearance to bet-the-company criminal and civil investigations. Before joining Baker McKenzie, Mark served as a trial attorney in the Antitrust Division of the US Department of Justice, where he was involved in some of the DOJ's highest-profile antitrust trials.

Mark assists clients in the defense of merger challenges, class actions, and civil and criminal investigations. He helps clients navigate federal and state regulatory inquiries, enforcement actions, complex merger clearance matters, and multidistrict antitrust class actions. As an experienced antitrust counsel, Mark also regularly provides advice on a broad range of antitrust compliance issues.

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