Richard M. "Rich" Castagna

Marc G. Brecher , a shareholder, has been practicing law since 1977. He earned his Bachelor’s degree from Albright College in 1973 and his law degree from Temple University in 1977. He is licensed to practice in Pennsylvania. He has also been specially admitted to practice in the States of New Jersey and Delaware on multiple occasions. He is admitted to practice before the Supreme Court of the United States. Mr. Brecher began his legal career as judicial law clerk to the Honorable Murra...

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...

Gerhard has more than 30 years of courtroom experience. Today, his practice is focused on the defense of product liability and other complex litigation matters, including mass torts and class actions. He represents manufacturers of appliances, HVAC equipment, roofing materials, truck-trailers, tires, and other products. He also has represented corporate clients in business disputes, commercial and employment litigation, CERCLA actions, and insurance coverage cases. He tried his first case to ...

Janice G. Dubler is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Janice G., who practices law in Philadelphia, Pennsylvania, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Janice G. is held by other top lawyers in the same geographic and legal practice area.

Curtis B. Toll represents developers and corporations in connection with the acquisition, development, transfer, financing and sale of environmentally contaminated real estate. He focuses his practice on complex project redevelopments, environmental liability transfers, and the management and mitigation of environmental risk. Curt structures, negotiates and manuscripts various specialized environmental contracts and insurance products, including cost cap, pollution legal liability and integra...

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...

Jonathan E. Becker is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Jonathan E., who practices law in Media, Pennsylvania, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan E. 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...

Brian P. Flaherty is a trial lawyer who handles complex commercial cases. He joined the firm’s Philadelphia office in April 2009 as a member in the Commercial Litigation Group. Prior to joining the firm, he was a partner with WolfBlock LLP in Philadelphia. Brian is a fellow of the American College of Trial Lawyers and is listed in The Best Lawyers in America in the field of Commercial Litigation. Brian represents clients in a wide range of commercial litigation and other disputes, inclu...

Mr. August is a nationally recognized tax lawyer who advises clients on income tax matters, including foreign taxation of U.S. businesses and U.S. taxation of foreign businesses and investors. In many instances he works with corporate and real estate counsel on selecting the proper entity in which to engage in domestic or foreign business or investment operations. He has been involved in structuring as well as negotiating merger and acquisitions, both taxable and non-taxable, joint ventures, ...