Cathleen M. Devlin

Matt Haverstick is a managing partner of the Firm and a partner in the Litigation Department. He represents government officials, private entities, and individuals in high-profile, media intensive litigation and appeals, ranging from major grand jury investigations to Pennsylvania Supreme Court arguments over the constitutionality of state laws. Referred to in media reports as “counsel of choice for state Republicans in a number of recent policy fights” for his work on matters tha...

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...

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.

Jennifer Ward is the Managing Partner and Owner of Ward Law, LLC , headquartered in Pennsylvania with offices in New Jersey, New York and Florida. Ms. Ward has substantial experience in the area of labor and employment law. Her litigation experience includes the defense of a variety of employment claims, including race, sex, national origin, disability discrimination, wage and hour, harassment, and retaliation claims. She has also defended cases involving wrongful discharge, breach of fiducia...

Mark Mullen has particular experience in federal court procedure, spoliation issues, and the economic loss doctrine.Throughout his career handling subrogation matters for more than 25 years, Mark has investigated fires in refineries, warehouses, commercial properties, and vehicles, as well as explosions, building collapses, energy losses, machine failures, and floods all over the country and internationally. He has investigated failures in more than 20 states and tried cases or handled appeal...

Jason S. Weiss is an associate at Wapner, Newman, Wigrizer, Brecher & Miller, P.C in Philadelphia, Pennsylvania. His practice focuses on representing victims who are injured due to medical malpractice , motor vehicle accidents , defective products , and premises liability . Since joining the firm, Mr. Weiss has been honored to serve as the associate for Partner Steven G. Wigrizer. Respected by his clients and peers alike, Mr. Wigrizer has been a past president of the Philadelphia Trial La...

A partner with Willig, Williams & Davidson, Laurence Goodman focuses his practice on labor and employment law matters. He counsels and represents unions and individuals regarding a wide range of issues including grievance and other arbitration, collective bargaining, wrongful termination, disputes arising from state and federal laws and appearances before boards, agencies and commissions. Laurence is an experienced practitioner who routinely advocates for clients in state and federal cour...

Ira C. Gubernick is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Ira C., 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 Ira C. 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.

Matthew L. Wilson is a partner at Martin Law and has practiced Pennsylvania workers’ compensation law exclusively for more than 25 years. He started his career representing agencies with the City of Philadelphia, major insurance carriers and self-insured corporations. After Mr. Wilson’s affiliation with two major defense firms, he was recruited by his partners in 1993 to protect the rights of injured workers. In the spring of 2015, Mr. Wilson became a certified specialist in Penns...