Liberty Mutual Insurance Names Marshall Dennehey External Law Firm Partner of the Year

Marshall Dennehey is honored to accept the External Law Firm Partner of the Year Award from Liberty Mutual Insurance. The award is bestowed upon law firms Liberty Mutual considers to have consistently delivered pragmatic legal solutions in defending and advancing the interests of their customers, policy holders and the company itself. 

According to Liberty Mutual, “Marshall Dennehey distinguished itself from its peers by focusing on quality and service, achieving exceptional outcomes in a cost-effective and innovative manner, and fostering inclusion.”   

“We are very grateful,” said Marshall Dennehey’s President and CEO, G. Mark Thompson. “Our two organizations have been doing business together for over 40 years making Liberty Mutual one of Marshall Dennehey’s oldest and most important relationships. Together we have resolved thousands of cases and we’re proud to have done so with a shared commitment to diversity and inclusion. This award reflects the hard work and dedication of our lawyers and paralegals who align everyday with Liberty Mutual’s commitment to excellence, collaboration and customer service.” 

The award was presented by Damon Hart, Executive Vice President and Chief Legal Officer for Liberty Mutual Insurance during a virtual ceremony on October 23, 2025. Joining Thompson in the awards program were John J. Hare, a member of the firm’s Board of Directors and Chair of the Appellate Advocacy & Post Trial Practice Group, and Butler Buchanan, III, Philadelphia Office Managing Attorney and Chair of the Diversity, Equity & Inclusion Committee. 

“It is especially rewarding to receive this recognition from a client with whom we have shared more than 40 years of partnership,” said Buchanan. “Liberty Mutual has long valued diverse perspectives and equitable collaboration, and this award is a testament to what can be achieved when those values guide both the client relationship and our approach to the practice of law.”