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Langer, Grogan & Diver P.C. is a Philadelphia-based law firm that focuses on complex litigation, particularly antitrust and consumer protection matters.

The firm was founded as boutique litigation firm that would divide its time between major commercial matters, particularly on behalf of small business, and law in the public interest, with its most recent emphasis in the area of consumer protection. Its antitrust work has received the American Antitrust Institute’s award for Outstanding Antitrust Litigation Achievement in Private Law Practice and its work in the public interest has been frequently recognized, most recently by the Philadelphia Bar Association’s, William V. Brennan Award for pro bono work.

The firm has obtained the largest consumer recovery within the Third Circuit and, prior to forming the firm in 2002, Howard Langer had been lead counsel in the case obtaining what was then the largest antitrust recovery within the circuit.

Among the firm’s awards for its work in the public interest are the Equal Justice Award of Community Legal Services of Philadelphia, the Pro Bono Award of the Hebrew Immigrant Aid Society, and the Social Justice Award of the Jewish Social Policy Network. In addition, the firm has established the Langer Grogan & Diver Social Justice Fellowship at the University of Pennsylvania Law School, which annually pays the first-year salary of a law graduate entering public interest law.

LGD’s lawyers have been at the forefront of many hallmark cases, including:

In re Nat'l Football League's Sunday Ticket Antitrust Litig., 933 F.3d 1136 (9th Cir. 2019)

National Football League v. Ninth Inning, Inc. (C.D. Cal.) – The firm represents a class of businesses and consumers in an action alleging an antitrust conspiracy between the NFL, its teams, and DirecTV to restrict access to out-of-market football games and drive prices up to access those games. The case is presently being prepared for trial following a landmark victory for the plaintiffs in the Ninth Circuit. See In re NFL’s Sunday Ticket Antitrust Litigation, 933 F.3d 1136 (9th Cir. 2019).





Turrey v. Vervent (formerly Aliff v. Vervent), No. 20cv00697 (S.D. Cal. 2023)

A federal jury has found loan servicer, Vervent, Inc, formerly First Associates Loan Servicing LLC, legally liable in a broad racketeering enterprise that cost ex-ITT students millions of dollars.

Commonwealth of Pennsylvania v. Think Finance, Inc. (E.D. Pa. 2021)

The firm acted as Special Counsel for the Pennsylvania Attorney General in a successful action against a Texas-based finance company, a private equity firm, and a debt collection company that used Native American tribes to evade state usury laws.

Laumann v. NHL, 56 F. Supp. 3d 280 (S.D.N.Y. 2014)

The firm settled major antitrust actions against the National Hockey League and Major League Baseball that required the sports leagues to agree to, for the first time, unbundle their internet sports offerings and to offer individual team streams at a discounted price.

Linerboard Antitrust Litigation, 305 F.3d 145 (3d Cir. 2002)

Obtained what was at the time the largest antitrust recovery ever within the Third Circuit—more than $202 million—in a case alleging a nationwide conspiracy to fix the prices of corrugated boxes.