News & Events

Jeffrey G. Rapattoni, Shareholder and Assistant Director of the Casualty Department at Marshall Dennehey, has been chosen to serve as Counsel to the Board of Directors of the International Association of Special Investigation Units (IASIU). The position became effective on August 27, 2025.  

Marshall Dennehey has once again been recognized as a leader in client service, earning a spot on BTI Consulting’s Client Service A-Team 2025, which honors law firms delivering the highest levels of service to corporate clients. The firm also attained A-Team status in 2024. 

Marshall Dennehey announced that it has added the majority of the talent and existing business of Pittsburgh-based civil defense litigation firm Walsh Barnes, P.C. The move brings seven attorneys, including former Walsh Barnes named partner Adam M. Barnes and two other shareholders, to Marshall Dennehey's Pittsburgh office. Paul J. Walsh, III, founder and managing partner of Walsh Barnes, is stepping away from active litigation after 35 years and will devote his full attention to mediation. Walsh Barnes will be closing as of July 31, 2025.

Marshall Dennehey announced today that two Philadelphia shareholders—John J. Hare and David J. Shannon—have been named to The Legal 500 Philadelphia Legal Elite. Additionally, the firm has been recognized as ‘Recommended’ in the area of Commercial Disputes. 

Marshall Dennehey has earned recognition as an “Innovation Standout” in the BTI Law Firm Innovation Icons 2025 report. Based on feedback from corporate counsel and top legal decision makers, firms were evaluated on legal strategy, client-focused innovation, and integration of advanced technologies, including generative AI, into their practices.

According to the report, clients ranked Marshall Dennehey highly across four key areas of innovation: