Jim Mathias is a trial lawyer who engages in a general corporate, securities and business litigation practice.

Jim focuses on litigation concerning securities and financial services, class actions, board governance, complex financial transactions, fraud, internal corporate and compliance investigations and contract disputes.

Jim is the chair of the Baltimore Litigation department and co-chair of DLA Piper’s Corporate and Securities Litigation group. He also serves as a member of the firmwide Policy Committee. Jim served as National Hiring co-chair in charge of recruiting firmwide from 2000 to 2005. He served as the Baltimore office Hiring Partner from 1997 to 2003.

Jim is a Fellow of the American College of Trial Lawyers. Chambers USA recommends him for his strengths in disputes concerning securities and financial services. Chambers and Partners, quotes a source saying that Jim "earns praise for his 'piercing intellect' and 'good judgment.'" Another impressed source notes that "the legal advice and the work results provided by Jim are of a very high quality. He has an aim-oriented approach which was highly appreciated by our mutual client." Jim is listed in The Best Lawyers in America, based on peer review in several areas, including Securities and Bet-the-Company Litigation. He was named Best Lawyers’ Baltimore Litigation-Securities "Lawyer of the Year" in 2014-15 and again in 2018He is a Maryland Super Lawyer.

In November 2014, Jim was awarded a 2014 Leadership in Law Award from The Daily Record in recognition of his outstanding professional achievements, community service and mentoring within Maryland's legal community.