Robert F. "Bob" Walsh

Caleb’s practice focuses on complex environmental litigation and environmental compliance. Caleb has represented clients in state and federal courts and in administrative proceedings. In his environmental litigation practice, Caleb often represents corporate clients in cost recovery, contribution and government enforcement actions under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Caleb has litigated such matters through trial and has also helped clien...

Alexander L. Scarola is a top attorney recognized by Best Lawyers in the practice area(s) of Public Finance Law. Alexander L., 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 Alexander L. is held by other top lawyers in the same geographic and legal practice area.

Jennifer A. Brandt is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Jennifer A., 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 Jennifer A. is held by other top lawyers in the same geographic and legal practice area.

Allison M. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants. Allison M., 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 Allison M. 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...

Brad M. Rostolsky is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Brad M., 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 Brad M. is held by other top lawyers in the same geographic and legal practice area.

Rob is a trial attorney who concentrates his practice on complex civil litigation, ranging from commercial disputes to defending against catastrophic personal injury claims. He has counseled companies and professionals across a variety of industries, including consumer and commercial product manufacturers, construction, hospitality, insurance, and governmental transportation and maritime agencies. He is regularly called upon by sophisticated clients to handle all phases of complex litigation....

Jennifer L. Zegel is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Jennifer 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 Jennifer L. is held by other top lawyers in the same geographic and legal practice area.

Eric Borjeson is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Eric, 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 Eric is held by other top lawyers in the same geographic and legal practice area.

Elizabeth A. Malloy concentrates her practice in the areas of employment litigation, employment law and serving as a neutral investigator of employment-related claims, as well as student complaints in the educational sector. Liz has represented employers in diverse industries in employment litigation, from single plaintiff cases to class action lawsuits. She has substantial experience with employers in retail, health care, energy, and manufacturing of all types. She has handled cases involvin...