Mark T. Wilhelm

Kaitlyn R. Maxwell is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. Kaitlyn R., who practices law in Philadelphia, Pennsylvania, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kaitlyn R. is held by other top lawyers in the same geographic and legal practice area.

John H. Filice is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships). John H., who practices law in Colmar, Pennsylvania, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John H. is held by other top lawyers in the same geographic and legal practice area.

Melissa Grossman is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Melissa, who practices law in Philadelphia, Pennsylvania, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa is held by other top lawyers in the same geographic and legal practice area.

James H. Heller, chair of the firm's Products Liability Practice Group and vice chair of the Commercial Litigation Department, joined the firm in August 1985. Jim is a member of the firm's Board of Directors. Jim practices out of the Philadelphia office. Jim handles complex commercial disputes and catastrophic personal injury claims. During his tenure at Cozen O’Connor, Jim has had extensive litigation experience, trying more than 50 cases to verdict or judgment in state and federal cou...

Richard G. Poulson has been representing labor unions since the inception of his career. His practice includes collective bargaining, interest and grievance arbitration and employment-related litigation. Rick specializes in advising and representing police, fire, paramedic and other uniformed employees regarding municipal affairs and public employment. Hailing from a proud labor tradition – his father was a Philadelphia firefighter and his mother was a teacher – Rick’s labor...

Curtis B. Toll represents developers and corporations in connection with the acquisition, development, transfer, financing and sale of environmentally contaminated real estate. He focuses his practice on complex project redevelopments, environmental liability transfers, and the management and mitigation of environmental risk. Curt structures, negotiates and manuscripts various specialized environmental contracts and insurance products, including cost cap, pollution legal liability and integra...

George has been advising management in labor and employment matters for more than 20 years, with a focus on traditional labor matters such as collective bargaining and union-management relations, employment litigation, and wage and hour advice and litigation in both the public and private sectors.George represents businesses, municipalities, nonprofits, and educational institutions in all aspects of labor and employment law, including federal and state court trial proceedings involving equal ...

Michael McKenna has been a partner in Margolis Edelstein since 1983 and has served as the firm’s Managing Partner since 1995. Before joining Margolis Edelstein in 1982, Michael was Assistant General Counsel for the Pennsylvania Manufacturers’ Association Insurance Company. He handles files, publishes, and speaks on a broad array of insurance and tort topics. As Managing Partner, Michael oversees all operations in a firm which has grown during his tenure from two to nine offices. M...

David G. Mandelbaum is a shareholder in Greenberg Traurig's Litigation and Environmental Groups. http://www.gtlaw.com/People/davidmandelbaum CONCENTRATION Air, Water, and Waste Regulation Superfund and Contamination Climate Change Oil and Gas Development Water Rights SIGNIFICANT REPRESENTATIONS Representation of industrial clients in wastewater, solid waste, and air permitting matters; administrative appeals; and enforcement actions Advises clients on sustainability and climate change, risk m...

Deborah R. Willig has served as Willig, Williams & Davidson’s managing partner since the firm’s founding in 1979. A determined advocate for workers, Deborah has focused her practice on labor relations and employment law since 1976. As a labor and employment attorney, Deborah has been involved in representing a wide range of labor unions including teachers, and non-professional public school employees, public health, social, and recreation workers, firefighters, teamsters and o...