Mark T. Wilhelm

Over the course of his 45-year career, Ed has conducted more than 100 jury and non-jury trials, arbitrations, mediations, and appeals. He represents businesses in civil litigation matters including contracts, products, construction, employment, trademarks, negligence, and insurance, and has handled matters in Pennsylvania, New Jersey, and several other states throughout the country. His cases have involved alleged defects in consumer and industrial products, construction errors and delays, tr...

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.

Thomas has extensive experience in commercial real estate transactions, including sales, leasing, financing, brokers licensing, zoning, and land development regulation. His practice includes zoning, land use, and historic preservation for projects in Philadelphia, including the Comcast Center (which is the tallest building in the city), the luxury condominium 1706 Rittenhouse Square, and the National Museum of American Jewish History. He also handles sale leaseback transactions and the repres...

H. Robert Fiebach joined Cozen O’Connor in February 1995. He is a member of the firm and resident in the Philadelphia office. In addition to his trial experience, Robert is an accomplished appellate advocate. He has successfully handled many appeals within his practice areas in the Pennsylvania Superior and Supreme Courts and the U.S. Court of Appeals for the Third Circuit. Robert has also successfully handled appeals in the Federal Courts of Appeal for the Second and Fourth Circuits. H...

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...

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...

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

Stuart W. Davidson has represented labor unions and employee benefit plans since graduating from Harvard Law school in 1982. Stuart began his legal career by successfully defending the pension rights of state employees in a case that was ultimately decided by the Pennsylvania Supreme Court. During Stuart’s legal career, he has been involved in representing a wide range of union workers, including musicians, longshoremen, machinists, steelworkers, firefighters, teamsters, police officers...

Bruce W. Ficken chairs the firm’s Construction Law group and is a recognized authority in representing clients in construction and commercial litigation, as well as managing risk in construction projects. As lead counsel he has successfully conducted more than 60 major trials in the United States and in international arbitrations. He has also helped numerous owners and developers with contract documentation, contract and project administration, and dispute avoidance and resolution. Bruc...

Christopher McLoon advises clients in structuring business transactions to achieve optimal business and tax results. He strives to clearly and simply communicate solutions to complex issues, sensitive to the fact that few love tax law and policy as much as he does. And he does love tax law and policy. After earning his JD, he earned an LL.M in tax law from New York University School of Law. He also earned awards and assignments from the ABA Tax Section, including a John S. Nolan Fellowship, t...