Bass, Berry & Sims attorneys Allison Wiseman Acker, Scott Gallisdorfer and Brian Irving were recognized by Benchmark Litigation in its 2025 40 & Under list. This annual list identifies the best and brightest litigators across the United States. The list is broken down by geographical region and our attorneys were three of the five recognized in the state of Tennessee. The announcement and list of winners can be found on the Benchmark Litigation website.
Allison Wiseman Acker
Allison represents clients in complex business litigation, including securities class actions, derivative suits, and litigation related to mergers and acquisitions and breach of fiduciary duty. She has successfully litigated and resolved matters in a variety of industries including healthcare, financial services, construction, education, hospitality, life sciences, and manufacturing. Allison also is actively involved in the firm's pro bono program with a focus on championing efforts to provide students with equitable access to resources and opportunities. Read more about Allison's practice here.
Scott Gallisdorfer
Scott focuses his practice on complex litigation and government and internal investigations, with an emphasis on matters related to the healthcare industry. Scott has significant experience in False Claims Act (FCA) litigation and healthcare fraud and abuse investigations, including civil and criminal investigations by the U.S. Department of Justice (DOJ), U.S. Department of Health and Human Services Office of Inspector General (HHS-OIG), and other federal and state regulators. Scott is actively involved in the firm's pro bono program working with wrongfully convicted individuals. Read more about Scott's practice here.
Brian Irving
Brian represents businesses and individuals in complex litigation and government enforcement matters, focusing on healthcare fraud, controlled substances enforcement and diversion, and business disputes. He has successfully represented clients in federal and state courts at both the trial and appellate levels, and in arbitrations and other forms of alternative dispute resolution. Brian serves as co-chair of the firm's Controlled Substances Enforcement & Diversion Practice and as editor of the firm's Inside the False Claims Act blog. To read more about Brian's practice, click here.