The attorneys at Cavanagh and Associates represent clients in matters before the:
- Missouri Supreme Court
- The Missouri Court of Appeals
- The United States Court of Appeals for the Eighth Circuit
- The United States District Court Eastern District of Missouri
- The Circuit Courts of St. Louis County
- St. Louis City, St. Charles, Franklin, Jefferson and Warren counties in Missouri
- and the Circuit Courts of St. Clair, Madison, Jersey and Monroe in Illinois.