Sonia Kuester Pfaffenroth focuses her practice on helping clients address complex antitrust issues in the US and globally. She rejoined the firm in 2017 from the Antitrust Division of the US Department of Justice (DOJ) where she served most recently as Deputy Assistant Attorney General for Civil and Criminal Operations. In that role, Ms. Pfaffenroth was responsible for supervising both civil and criminal antitrust enforcement efforts, as well as the Division’s work with antitrust and competition law enforcement agencies worldwide.

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