John J. Stanzione

Stephen A. Miller is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Compliance Law and Criminal Defense: White-Collar. Stephen A., who practices law in Philadelphia, Pennsylvania, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen A. is held by other top lawyers in the same geographic and legal practice area.

Former Chair of the American Bar Association's Superfund and Natural Resources Damages Litigation Committee, Shoshana (Suzanne Ilene) Schiller (she/her) is a partner in the firm’s litigation group, handling a wide range of disputes with particular experience in CERCLA, cost recovery, contribution and real estate litigation. Shoshana is AV® Preeminent® Peer Review Rated* through Martindale-Hubbell® and a Senior Fellow of the Litigation Counsel of America, trying jury and non-...

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.

Stephanie Peet is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Litigation - Labor and Employment and Mass Tort Litigation / Class Actions - Defendants. Stephanie, who practices law in Philadelphia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie is held by other top lawyers in the same geographic and legal practice area.

Daniel Q. Harrington is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law. Daniel Q., 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 Daniel Q. is held by other top lawyers in the same geographic and legal practice area.

As a civil trial lawyer for the last twenty-five years, Steve Bardsley has developed extensive experience in multiple practice areas, with recognized skill in professional liability, environmental law, and construction law. Whether handling cases before state and federal courts or in arbitration forums, Steve’s primary focus is always on solving client problems in the most efficient and ethical manner. Steve has a proven track record of skillfully handling a wide range of construction m...

Michael Daly is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Michael, 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 Michael is held by other top lawyers in the same geographic and legal practice area.

For over 30 years, partner John Livingood has defended insured and self-insured entities in casualty litigation. He represents individuals and local, regional, and national corporations in complex, high-exposure litigation throughout Pennsylvania and New Jersey. John has extensive major jury and non-jury trial experience in the Philadelphia region, having tried over 50 matters to verdict. He regularly serves as excess counsel for carriers, assuming responsibility for and trying cases anywhere...

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...

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...