Jonathan Landesman

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...

James Barry is a partner at DeNittis Osefchen Prince PC in Marlton, New Jersey . He represents plaintiffs in complex litigation matters, including mass tort litigation and class actions . Mr. Barry has more than 15 years of experience advocating for individuals and government entities in federal and state courts in cases involving consumer fraud, wage and hour violations, environmental contamination , data breaches, and other complex disputes. Mr. Barry has held leadership roles in consolidat...

Daniel P. O'Meara is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Daniel P., who practices law in Philadelphia, Pennsylvania, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daniel P. is held by other top lawyers in the same geographic and legal practice area.

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

Jennifer M. Horn is an accomplished attorney with comprehensive experience in client representation and litigation. She has built her practice representing owners, construction managers, contractors, subcontractors, suppliers, sureties, and homeowners in matters arising from public and private construction projects. Jennifer leads the Horn Williamson Construction Practice Group. She has extensive skill representing clients with delay claims and routinely works with expert witnesses to prosecu...

For almost 20 years, Daniel J. Mann has represented individuals and families who have been victims of defective manufactured products, trucking and motor vehicle accidents , construction and workplace accidents, premises defects, and medical malpractice. He has brought cases against obstetricians and hospitals for birth injury and malpractice, trucking companies for accidents resulting in severe injury and death, and car manufacturers for unsafe vehicle construction. A partner of the firm sin...

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...

Whether he is negotiating a settlement or trying a case to verdict, Edward Chacker is recognized as one of the leading trial lawyers in Pennsylvania. As Senior Managing Partner and Chair of Gay & Chacker, Edward has built a successful career representing clients in the personal injury and civil litigation arenas, particularly in cases involving car and truck crashes , workplace injuries, slip and fall accidents, medical malpractice , and police and correctional guard abuse. He is an appro...

Kelly Anne Donohoe is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Kelly Anne, 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 Kelly Anne is held by other top lawyers in the same geographic and legal practice area.

Leonard A. Bernstein is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Financial Services Regulation Law. Leonard A., who practices law in Philadelphia, Pennsylvania, has been recognized since 2001. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leonard A. is held by other top lawyers in the same geographic and legal practice area.