Appellate Veterans Launch Zimmer, Citron & Clarke, a New Litigation Boutique Providing Sophisticated Advocacy for High-Stakes Issues and Appeals
BOSTON and WASHINGTON, March 18, 2025 --Three accomplished appellate attorneys have come together to form Zimmer, Citron & Clarke, a boutique firm focused on providing sophisticated legal advocacy for plaintiffs in high-stakes litigation.
Founded by David Zimmer, Eric Citron,and Edwina Clarke, the firm brings together the attorneys' deep combined experience in appellate litigation before the United States Supreme Court and federal and state courts of appeals. In addition to their tenure at larger firms, the founders have collectively clerked for ten members of the federal bench, including four justices of the U.S. Supreme Court, four federal court of appeals judges, and two federal district court judges.
Zimmer, Citron & Clarke offers a unique model, providing sophisticated appellate advocacy and legal analysis to plaintiffs and their trial counsel through collaborative arrangements. The firm focuses on serving as a specialized team that works with trial attorneys, handling complex legal issues in appeals, motions practice, and strategic advising. The firm also provides case analysis to investors and litigation funders.
David Zimmer previously spent eleven years at Goodwin Procter, where he was a partner and helped build the firm's Supreme Court and Appellate practice. He has argued or second-chaired seven merits cases at the U.S. Supreme Court and dozens of appeals in federal and state appellate courts. Recognized in Chambers USA's Nationwide Appellate Rankings and as one of Law360's Appellate Rising Stars, David also serves as a Lecturer at Harvard Law School, where he teaches the Federal Courts Clinic.
"We've created an elite firm that's the right size and has the right people to support complex plaintiff-side litigation with expertise that's not always available in these contexts," said David Zimmer. "Our goal is to serve as a strategic partner for plaintiff-side trial firms as they navigate complicated legal issues in trial courts and courts of appeals."
Eric Citron comes to the firm after spending a decade at two leading Washington appellate litigation boutiques representing plaintiffs in high-stakes litigation. He has extensive experience in enforcement-side antitrust and competition appeals, having represented plaintiffs in several billion-dollar cases, including the Visa/Mastercard interchange fee litigation and appeals from financial-market manipulation scandals. Eric also teaches the Supreme Court Litigation clinic at Harvard Law School and serves as a managing director at TRGP Capital, a leading litigation finance fund.
"The traditional big law model prices out smaller firms and favors corporate defendants," said Eric Citron. "We believe the plaintiffs' bar should have access to the most sophisticated legal advocacy and innovative litigation strategies at all levels of a case, and that's what we're offering."
Edwina Clarke previously spent seven years at Goodwin Procter as a partner in the Supreme Court and Appellate practice. Her work spans patent litigation, administrative law, civil rights, and ERISA, with experience analyzing and handicapping cases for investment firms and litigation funders. Named to Benchmark Litigation's '40 & Under Hot List' for 2023 and 2024, Edwina has also been recognized by Best Lawyers in America for her work in appellate litigation.
"We've identified a clear gap in the market for highly qualified appellate litigators on the plaintiffs' side," said Edwina Clarke. "Our combined experience–from big law defense work to plaintiff-side representation and extensive judicial clerkships–positions us uniquely to offer sophisticated litigation support with an entrepreneurial spirit."
In addition to representing plaintiffs in appeals and complex legal issues, the firm will also provide strategic legal insight to investment firms and litigation funders, an area often underserved by big law firms due to conflicts of interest or project size.
For more information, visit www.zimmercitronclarke.com.
About Zimmer, Citron & Clarke
Zimmer, Citron & Clarke is a boutique appellate litigation firm led by attorneys with extensive experience litigating before the Supreme Court and federal and state courts of appeals. The firm focuses on serving plaintiff-side trial firms and providing strategic legal insight to investment firms and litigation funders.
Press Contact: contact@zimmercitronclarke.com
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