John A. "Jack" Guernsey

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...

Julie L. Von Spreckelsen is a top attorney recognized by Best Lawyers in the practice area(s) of Land Use and Zoning Law, Litigation - Land Use and Zoning and Municipal Law. Julie L., who practices law in Blue Bell, Pennsylvania, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Julie L. is held by other top lawyers in the same geographic and legal practice area.

After nearly thirty (30) years of distinguished full-time practice in the area of Construction Law, Margaret Underwood is now Of Counsel to Horn Williamson. During her full-time practice of law, Ms. Underwood provided high-level legal services to local, national, and international owners, contractors, and subcontractors on many of the largest and most prestigious construction projects located in and around the Philadelphia Area and as far away as Europe and the Marshall Islands. Her extensive...

Kayci D. Petenko is a top attorney recognized by Best Lawyers in the practice area(s) of Nonprofit / Charities Law. Kayci D., 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 Kayci D. is held by other top lawyers in the same geographic and legal practice area.

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

Jarad L. Silverstein is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Jarad L., 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 Jarad L. is held by other top lawyers in the same geographic and legal practice area.

Andrew Knox joined Timoney Knox as an associate in 2018 and concentrates his practice in the area of education, trust and estates litigation, personal injury, medical malpractice, product liability as well as commercial and civil litigation. While working full time, Mr. Knox attended the evening Division of Widener University School of Law. Mr. Knox is following in the footsteps of his great-grandfather, grandfather, father, and uncle in practicing law. Mr. Knox has been honored with inclusio...

Roberta “Bobbie” D. Pichini has built her legal career around her unwavering dedication to representing seriously injured babies, children, and adults. As a Medical Malpractice Lawyer, in the past 30 years, she has honed her litigation skills in the area of obstetrical malpractice, representing brain-injured children, patients who have suffered from a delay in diagnosis of cancer, emergency room errors, patient abuse by medical professionals, and surgical negligence. Bobbie also p...

Carter N. Williamson is a construction practice attorney who has represented construction industry clients including contractors, subcontractors, suppliers, and owners. He has a background in litigating and resolving legal construction matters from routine common disputes to complex, multi-party litigation. He has resolved construction matters through litigation, arbitration and mediation in the five-county Philadelphia area, the United States District Court for the Eastern District of Pennsy...

Steven G. Wigrizer is an experienced trial attorney who has been repeatedly recognized as one of the best in his field. His devotion to and compassion for his clients have earned him a high level of client loyalty, while his preparation and understanding of complex cases have won him the respect of his opponents and colleagues. Few lawyers can match this unique combination. Mr. Wigrizer concentrates his practice in complex civil litigation including medical malpractice , products liability , ...