Sarah R. Schalman-Bergen


Sarah R. Schalman-Bergen is a Shareholder at the Firm. She Co-Chairs the Firm’s Employment Law Department and is a member of the Firm’s Antitrust, Insurance Products & Financial Services, and Lending Practices & Borrowers’ Rights Departments.

Richard Schwartz

Senior Counsel

Richard Schwartz is Senior Counsel in the Antitrust practice group.  Mr. Schwartz concentrates his practice in the area of complex antitrust litigation with a focus on representation of direct purchasers of prescription drugs.

Daniel C. Simons

Senior Counsel

Daniel C. Simons is Senior Counsel in the Antitrust and Consumer Protection Groups. He concentrates a significant percentage of his practice on complex antitrust litigation, with a focus on anticompetitive arrangements in the pharmaceutical industry.

David F. Sorensen

Managing Shareholder

David Sorensen is a Managing Shareholder and Co-Chair of the Firm’s antitrust department. He graduated from Duke University (A.B. 1983) and Yale Law School (J.D. 1989), and clerked for the Hon. Norma L. Shapiro (E.D. Pa.).

Mark Suter


Mark Suter is an Associate in the Firm’s Philadelphia office. He represents businesses, workers, consumers, and public entities in complex civil litigation, including class and collective actions, with a focus on antitrust, labor, and consumer protection matters.

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