John A. Greenhall

William H. Catto is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Construction and Litigation - Labor and Employment. William H., 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 William H. is held by other top lawyers in the same geographic and legal practice area.

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.

Jon S. Robins is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Jon S., who practices law in Philadelphia, Pennsylvania, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jon S. 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...

Whether he is negotiating a settlement or trying a case to verdict, Edward Chacker is recognized as one of the leading trial lawyers in Pennsylvania. As Senior Managing Partner and Chair of Gay & Chacker, Edward has built a successful career representing clients in the personal injury and civil litigation arenas, particularly in cases involving car and truck crashes , workplace injuries, slip and fall accidents, medical malpractice , and police and correctional guard abuse. He is an appro...

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

Consistently achieving both seven and eight figure verdicts, Kenneth M. Rothweiler is “at the top of his profession,” exclaims client Joanne Graham. His revered reputation in Pennsylvania among patients, doctors, and lawyers alike is undeniable - commencing his career by serving as a legal clerk for the Superior Court of PA, he stands today as the co-founder, senior partner, and chair of the management committee of his firm. Dedicated to complex personal injury litigation, he is o...

Andrew F. Ruder is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Andrew F., who practices law in Philadelphia, Pennsylvania, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew F. is held by other top lawyers in the same geographic and legal practice area.

Lawrence R. Cohan is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs, Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Lawrence R., 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 Lawrence R. is held by other top lawyers in the same geographic and legal practic...

Thomas Boulden is a partner at Timoney Knox and focuses his practice in estate litigation. In his 20 years of representation of clients in the Orphans’ Courts of Pennsylvania, he has extensive experience in the areas of will contests, trust, fiduciary and surcharge litigation as well as guardianships for incapacitated persons. He has experience representing both fiduciaries and beneficiaries. In addition to litigation matters, Mr. Boulden assists and counsels clients in estate planning ...