Sean G. Livesey

William Hussey focuses his practice on matters of federal, state, local and international taxation. As part of a multidisciplinary team, Bill counsels clients in structuring their business and investment affairs in a tax-efficient manner, from the selection, formation and operation of business entities to the disposition of those entities. Bill provides guidance on the ongoing tax obligations and opportunities available to clients in all manner of their domestic and international operations. ...

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.

Danielle Dietrich is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Health Care Law. Danielle, who practices law in King of Prussia, Pennsylvania, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Danielle is held by other top lawyers in the same geographic and legal practice area.

John represents a broad array of clients, ranging from Fortune 500 companies to smaller closely held businesses, facing diverse environmental issues. John is co-practice leader of the firm's New Jersey practice, is a partner in the firm’s environmental litigation group, and is also regularly called upon by clients to handle site remediation matters and complex negotiations with government entities and private parties. John’s work on contaminated sediment sites and related litigati...

Simon T. Haileab is an accomplished and skilled trial lawyer at Wapner Newman, P.C. In courtrooms and communities across Pennsylvania and New Jersey he fights to ensure injured victims gets a fair shake. Mr. Haileab is a well-respected member of his profession who is known for being tenacious while advocating for his clients in all personal injury matters. He has garnered recognition for his advocacy skills from his opponents, the judiciary, and most importantly, the countless clients he has ...

Michael J. Heller is the chief executive officer of Cozen O'Connor. He serves on the firm's board of directors, management committee and heads the emerging business and venture capital practice. Michael approaches each situation with an entrepreneurial zeal, and his investing experience arms him with a unique ability to provide legal and business insight into a variety of complex corporate matters. He understands, first hand, the critical roles of modern executives. Michael is a recognized le...

Joseph E. Lastowka, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Joseph E., who practices law in Media, Pennsylvania, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph E. is held by other top lawyers in the same geographic and legal practice area.

Andrea E. Hammel is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Andrea E., who practices law in West Conshohocken, Pennsylvania, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrea E. is held by other top lawyers in the same geographic and legal practice area.

Andrew R. Duffy is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Andrew R., who practices law in Philadelphia, Pennsylvania, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew R. is held by other top lawyers in the same geographic and legal practice area.

Patrick J. O´Connor is vice chairman of Cozen O´Connor. He is a trial lawyer who focuses his practice on litigation arising out of contracts, banking matters, estates, professional liability involving legal and accounting matters, health care, and aviation-related claims. Prior to joining Cozen O´Connor in 1973, he served as law clerk to the Hon. Thomas J. Clary, chief judge of the U.S. District Court for the Eastern District of Pennsylvania, and was an associate attorney at...