Edward J. Stack IV

Andrew R. Duffy is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Andrew R., 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 Andrew R. is held by other top lawyers in the same geographic and legal practice area.

Caleb’s practice focuses on complex environmental litigation and environmental compliance. Caleb has represented clients in state and federal courts and in administrative proceedings. In his environmental litigation practice, Caleb often represents corporate clients in cost recovery, contribution and government enforcement actions under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Caleb has litigated such matters through trial and has also helped clien...

David N. Hofstein is the Founding Shareholder and President of Hofstein Weiner & Meyer, P.C. David is a pioneer in modern family law, having begun his practice in domestic relations contemporaneously with the adoption of the Pennsylvania Divorce Code in 1980. His practice today focuses on complex divorce and custody matters, representing, in a discrete manner, many high net worth individuals and prominent members of the community, including professionals, corporate executives and entrepre...

Sol H. Weiss is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Sol H., who practices law in Philadelphia, Pennsylvania, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sol H. is held by other top lawyers in the same geographic and legal practice area.

Margaret A. Joy is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Margaret A., who practices law in West Chester, Pennsylvania, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Margaret A. is held by other top lawyers in the same geographic and legal practice area.

Rodd has concentrated on brownfield transactions and compliance counseling across a variety of regulatory programs since joining the firm in 1997. He has extensive experience structuring environmental due diligence for real estate and business transactions, negotiating environmental provisions in transactional documents, and advising developers on satisfying state and federal cleanup programs and property transfer laws consistent with business objectives. For brownfield projects Rodd has nego...

Nancy B. G. Lassen is a partner in the Philadelphia office of Willig, Williams & Davidson. Nan has focused her practice on labor law at WWD since 1984. Nan grew up in Detroit, MI in a family with strong ties to labor. Her father (a disabled veteran) was a Teamster. Her mother was a UAW member. And her grandfather was a Steelworker. Nan herself has been a tireless and courageous advocate for working men and women for decades. Working in industry since age 15, including on a Chrysler assemb...

Barbara Rittinger Rigo is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Barbara Rittinger, who practices law in Philadelphia, Pennsylvania, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Barbara Rittinger is held by other top lawyers in the same geographic and legal practice area.

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...

Jennifer W. Karpchuk represents companies and individuals in various matters related to state and local taxation, with an emphasis on the minimization of state and local tax obligations. She has extensive experience handling state and local tax matters, including those related to: corporate income taxes, franchise taxes, gross receipts taxes, excise taxes, personal income taxes, sales and use taxes, business privilege taxes, and real estate taxes. Jennifer serves in a number of leadership rol...