Tova Rabin

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.

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...

Danielle Dietrich is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Health Care Law. Danielle, who practices law in King of Prussia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Danielle is held by other top lawyers in the same geographic and legal practice area.

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...

Matthew H. Kamens joined the firm’s Philadelphia office in April 2009 as senior counsel in the Business Law Department. A member of the Private Client Services Group, Matthew concentrates his practice in trusts, estate and business planning matters, as well as complex estate administration. Matthew has significant knowledge of life insurance and its structuring in estate planning contexts and also serves as a trustee of a number of significant trusts holding liquid and nonliquid assets ...

Lee B. Balefsky is senior counsel and former head of the Mass Tort Department in which he was involved in lawsuits dealing with a wide range of products and toxic substances, from pharmaceuticals to defective medical devices, from asbestos to denture creams containing zinc. Balefsky was a member of the Plaintiffs Steering Committee involved in all transvaginal mesh cases nationwide and he served as liason counsel in the Philadelphia Mass Tort Pelvic Mesh program. He had great success in other...

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...

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.

Robert A. Silverman joined the firm’s Philadelphia office in March 2009 as a member in the Business Law Department. For the period from September 1981 through his arrival at Cozen O'Connor he practiced in the Real Estate Department of another major Philadelphia law firm, where he was a partner since 1989. A member in the Real Estate Practice Group, Robert represents developers, lenders and owners in a variety of sophisticated transactions, including the development of office buildings, ...