Pierre Queiroz de Oliveira

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...

Bryan is a partner at the firm and has experience in counseling and representing clients on a range of environmental and energy matters. Bryan’s practice has focused on regulatory compliance and transactional matters, particularly in the areas of air and water quality, redevelopment, sustainability, permitting, energy efficiency and renewable energy development. Over the last several years, Bryan has primarily worked with complex regulated industries, notably including petroleum refinin...

Rick E. Grimaldi is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Rick E., 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 Rick E. is held by other top lawyers in the same geographic and legal practice area.

David Kwass is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. David, who practices law in Philadelphia, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Kristen Gibbons-Feden is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Kristen, 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 Kristen is held by other top lawyers in the same geographic and legal practice area.

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Christopher A. Gomez has experience in a wide range of legal matters – from representing plaintiffs and defendants, practicing in state and federal courts, and litigating matters from personal injury to mass torts to whistleblower litigation. And he has had success every step of the way. Gomez earned his bachelor’s degree at North Carolina State University and his law degree at Widener University School of Law, where he graduated in the top third of his class and was a member of t...

Harry M. Roth is a shareholder in the law firm and is widely regarded for his superior handling of complex civil litigation including medical negligence, medical malpractice, product liability, catastrophic personal injury, wrongful death, and pharmaceutical cases. He has been has been selected by his fellow lawyers as one of the Best Lawyers in America®. Through jury verdict and settlement, he has achieved a number of multi-million dollar results in professional liability and product lia...

Robert L. Pratter is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Robert L., 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 Robert L. is held by other top lawyers in the same geographic and legal practice area.

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...