Joe Roselius helps his clients solve problems in complex commercial disputes and governmental investigations.

His practice currently focuses on restructuring litigation, healthcare litigation, and False Claims Act and whistleblower litigation and investigations. In the healthcare sector, he advises clients on provider-payer disputes, antitrust issues, and Medicare/Medicaid compliance issues. Joe represents both relators and companies in qui tam disputes under the federal and state False Claims Act and the Illinois Insurance Claim Fraud Prevention Act. He advises clients in other complex commercial disputes, including consumer class actions, real estate disputes and cross-border matters for international clients from Europe, the Middle East and Asia. 

Joe is actively involved in DLA Piper's internal governance, recruiting, and pro bono activities. He served as a member of the Firmwide Associates Committee and the Chicago Associates Committee, as well as a member of the Chicago Summer Program Committee.