Vincent Barbera

Litigation partner Kate Campbell handles environmental, toxic tort and class action litigation and Superfund and RCRA remediation matters*. Since joining the firm in 2003, she has developed considerable experience in defending complex toxic tort claims for personal injury, wrongful death, medical monitoring and property damage, in representing potentially responsible parties across the country in CERCLA and RCRA matters, and in litigating federal, state and private enforcement actions under a...

Laura M. Brooke is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Laura M., who practices law in Philadelphia, Pennsylvania, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laura M. is held by other top lawyers in the same geographic and legal practice area.

Tyler J. Therriault is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs. Tyler J., who practices law in Media, Pennsylvania, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tyler J. is held by other top lawyers in the same geographic and legal practice area.

The Honorable Geoffrey W. Dlin (ret.) has returned to private practice and joined KK &O after serving more than 15 years as a Workers' Compensation Judge. As a judge, he decided thousands of contested workers' compensation cases and frequently taught other lawyers, judges and private organizations about workers' compensation matters. In addition to those traditional roles of a judge, Geoff developed a statewide mediation practice. His skills in settling workers' compensation cases were hi...

Stephen Raynes has distinguished himself in his representation of clients in serious injury and wrongful death cases, often in high profile cases, which he has done with a sensitivity and commitment to confidentiality. He has achieved million-dollar and multi-million-dollar recoveries on behalf of his individual clients more than 100 times in the areas of general personal injury, medical malpractice and product liability, including countless eight-figure recoveries and record settlements. He ...

A graduate of the University of Pennsylvania and its law school, Marc Jonas is co-chair of the firm's Land Use and Zoning practice group. He has extensive experience in real estate, land use, municipal law, and zoning matters, representing individuals, businesses, institutions, non-profit organizations and municipalities. Marc has practiced land use and real estate law for more than 30 years. In his career, Marc has appeared as counsel in Pennsylvania state and federal courts in matters invol...

Alexia M. Fishman is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Alexia M., 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 Alexia M. is held by other top lawyers in the same geographic and legal practice area.

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, ...

Jessica Natali is a Chambers-rated white collar criminal defense attorney and former Assistant U.S. Attorney for the Eastern District of Pennsylvania. She has deep experience both prosecuting and defending a wide range of criminal and civil cases, particularly health care fraud and securities, financial institution and accounting fraud. Jessica represents corporations and individuals in federal and state criminal cases, complex white collar defense matters, internal investigations, civil inve...

Peter Amuso's legal journey was inspired by his grandfather, whose legacy deeply influenced his career choices. Pursuing higher education with an Army ROTC Scholarship, Peter graduated magna cum laude from Georgetown University in 1994. He then attended Harvard Law School, earning his degree with honors in 1997, before serving overseas as an active duty Army officer in the Judge Advocate General's Corps. During his time in the JAG Corps, Peter notably worked on a defense team that successfull...