John A. Greenhall

Alfred J. Carlson is a partner at Martin Law. Al has been a litigator in Pennsylvania workers’ compensation law since passing the bar in 1992 and joined his partners at Martin in 2000 to represent injured workers. He previously practiced at a leading defense firm in Philadelphia, representing international corporations, major insurance companies and state and local government agencies in Pennsylvania workers’ compensation cases. In the spring of 2013, Mr. Carlson was among the fir...

For more than two decades, Fredric S. Eisenberg has worked relentlessly in protecting the rights of seriously injured victims. After graduating in 1984 from the University of Pennsylvania, he attended and graduated law school at Temple University School of Law in 1987. Mr. Eisenberg spent the first five years of his career at Labaton Sucharow in New York City, representing individuals and families who suffered financial hardship as a result of corporate misconduct in high-profile securities c...

For more than 30 years, co-founding partner Ezra Wohlgelernter has maintained a diverse practice portfolio including a successful history of motor vehicle and truck litigation, premises liability claims, medical negligence litigation, and significant personal injury claims. Ezra has represented victims of unsafe working environments, drunk driving and trucking accidents, operating room neglect, and civil rights violations. Ezra’s robust legal experience spans a broad spectrum of areas a...

Fred J. D'Angelo, Jr., concentrates his practice on the representation of management in labor and employment law. His experience includes representation of employers in both traditional labor relations and employment litigation. This experience includes representing employers on union prevention campaigns, collective bargaining negotiations, and labor contract administration. Fred has represented employer clients in virtually all industries, including manufacturing, shipping, transportation, ...

Cheryl A. Upham is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Cheryl A., who practices law in Philadelphia, Pennsylvania, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cheryl A. is held by other top lawyers in the same geographic and legal practice area.

Matt Haverstick is a managing partner of the Firm and a partner in the Litigation Department. He represents government officials, private entities, and individuals in high-profile, media intensive litigation and appeals, ranging from major grand jury investigations to Pennsylvania Supreme Court arguments over the constitutionality of state laws. Referred to in media reports as “counsel of choice for state Republicans in a number of recent policy fights” for his work on matters tha...

A partner in Willig, Williams & Davidson’s labor department, Bruce M. Ludwig has been representing unions and working individuals for more than 30 years. He counsels and represents clients in state and federal courts and administrative matters ranging from discrimination and civil rights disputes to pension, retirement, unemployment compensation and wage and hour issues. Resident in the firm’s Philadelphia office, Bruce is a skilled litigator and strategist who has served as c...

A Willig, Williams & Davidson partner, Linda M. Martin counsels and represents labor organizations and individuals in a broad range of labor and employment matters. She routinely advocates on behalf of her clients in state and federal courts, and before arbitrators and administrative agencies. Linda’s substantial professional experience includes labor practice proceedings, contract negotiations, ERISA litigation, employment claims and labor disputes, among other areas. In addition, ...

James M. Kwartnik is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. James M., who practices law in Philadelphia, Pennsylvania, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James M. is held by other top lawyers in the same geographic and legal practice area.

Jenna L. King is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Jenna L., who practices law in Philadelphia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jenna L. is held by other top lawyers in the same geographic and legal practice area.