Liam J. Duffy

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

Roberta “Bobbie” D. Pichini has built her legal career around her unwavering dedication to representing seriously injured babies, children, and adults. As a Medical Malpractice Lawyer, in the past 30 years, she has honed her litigation skills in the area of obstetrical malpractice, representing brain-injured children, patients who have suffered from a delay in diagnosis of cancer, emergency room errors, patient abuse by medical professionals, and surgical negligence. Bobbie also p...

Patrick M. McKenna has extensive experience representing numerous municipalities, zoning hearing boards, municipal authorities, and planning commissions in Chester and Delaware Counties. In addition, he advises and guides private land owners and developers through complex commercial land development matters, from acquisition and planning, through the permitting and land development phases. He has represented clients on matters including townhome developments, senior care homes, national fast-...

W. John Vandenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Immigration Law. W. John, 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 W. John is held by other top lawyers in the same geographic and legal practice area.

Lenard A. Cohen is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Workers' Compensation Law - Claimants. Lenard A., who practices law in Philadelphia, Pennsylvania, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lenard A. is held by other top lawyers in the same geographic and legal practice area.

The Honorable Geoffrey W. Dlin (ret.) has returned to private practice and joined KK &O after serving more than 15 years as a Workers' Compensation Judge. As a judge, he decided thousands of contested workers' compensation cases and frequently taught other lawyers, judges and private organizations about workers' compensation matters. In addition to those traditional roles of a judge, Geoff developed a statewide mediation practice. His skills in settling workers' compensation cases were hi...

Nancy B. G. Lassen is a partner in the Philadelphia office of Willig, Williams & Davidson. Nan has focused her practice on labor law at WWD since 1984. Nan grew up in Detroit, MI in a family with strong ties to labor. Her father (a disabled veteran) was a Teamster. Her mother was a UAW member. And her grandfather was a Steelworker. Nan herself has been a tireless and courageous advocate for working men and women for decades. Working in industry since age 15, including on a Chrysler assemb...

Ryan D. Hurd is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Ryan D., 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 Ryan D. is held by other top lawyers in the same geographic and legal practice area.

Jason A. Daria handles a wide range of complex civil litigation involving motor vehicle and trucking accidents, construction accidents, premises and product liability, personal injury , and medical malpractice . His history of successful motor vehicle and trucking results include a $31.3 million verdict, the largest motor vehicle accident jury verdict ever awarded in the Superior Court of New Jersey in Camden County. Jason’s client was permanently injured when his car crashed into a dan...

Stephen Raynes has distinguished himself in his representation of clients in serious injury and wrongful death cases, often in high profile cases, which he has done with a sensitivity and commitment to confidentiality. He has achieved million-dollar and multi-million-dollar recoveries on behalf of his individual clients more than 100 times in the areas of general personal injury, medical malpractice and product liability, including countless eight-figure recoveries and record settlements. He ...