Rosa M. Tumialán

Patrick J. Arnold, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Patent Law and Trademark Law. Patrick J., who practices law in Chicago, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick J. is held by other top lawyers in the same geographic and legal practice area.

Derek G. Barella is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Derek G., who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Derek G. is held by other top lawyers in the same geographic and legal practice area.

Michael A. Warner, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. Michael A., who practices law in Chicago, Illinois, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael A. is held by other top lawyers in the same geographic and legal practice area.

David Heiss is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Litigation - Insurance. David, who practices law in Chicago, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Brian Sodikoff is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Brian, who practices law in Chicago, Illinois, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian is held by other top lawyers in the same geographic and legal practice area.

Nathan draws on over two decades of insolvency and workout experience to provide practical and insightful advice to clients. He builds relationships to obtain favorable results in both transactional and litigation matters. Nate is the chair of Barack Ferrazzano’s Bankruptcy & Creditor Rights Group. He has extensive experience in all aspects of business reorganizations, workouts, and bankruptcies, inside and outside of court restructurings. This includes the representation of credito...

Jeffrey L. Rudd is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Jeffrey L., who practices law in Chicago, Illinois, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey L. is held by other top lawyers in the same geographic and legal practice area.

Marcelo Halpern is a partner with the firm's Business practice and a member of the Technology Transactions & Privacy group. Marcelo's practice focuses on transactional, strategic and corporate representation of global "FORTUNE 100" companies, start-up and emerging growth companies, as well as U.S.-based and international governments and non-profits. His experience includes structuring and negotiating technology and intellectual property-oriented strategic alliances and joint ventures; sof...

Andrew is a trial and appellate lawyer in the firm’s Litigation and Insurance Policyholder Practice Groups. Andrew has earned a reputation as a shrewd and versatile litigator capable of tackling the most vexing legal problems. Andrew has an active commercial litigation practice spanning multiple industries with experience successfully prosecuting and defending a wide variety of litigation and arbitration matters from inception through trial and appeals. Andrew’s dynamic skill set ...

Matthew Antinossi's practice includes all ERISA-related areas, and he has extensive experience with the employee benefits aspects of mergers, acquisitions and divestitures, including ESOP transactions. In addition to his transactional practice, Matthew is frequently involved in representing debtors in the employee benefits aspects of bankruptcy, insolvency and restructuring. Such representations frequently involve resolution of complex ERISA Title IV issues. A significant portion of Matthew's...