About John Stephen
John Stephen Mixon practices law from Jonesboro, where he combines a steady courtroom presence with years of experience on state and federal dockets. He completed undergraduate studies at Emory University, earning a B.A. in History and Political Science in 1985. He returned to Georgia for law school and received his J.D. from the University of Georgia School of Law in 1992.
After law school he entered private practice and built a multi-jurisdictional practice. In 1998 he became a partner at Millar and Mixon, LLC. That partnership has anchored his work since then. Colleagues describe him as methodical and pragmatic; clients have relied on him for representation across state lines and in federal court.
Mixon is admitted to practice in Georgia and South Carolina and is authorized to appear before the 11th Circuit. Those admissions shape the cases he handles and where he can appear. He has managed matters that require coordination between state trial courts and federal appellate proceedings. He is comfortable moving cases through different levels of the legal system when necessary.
Throughout his career he has maintained an office in Jonesboro. From there he handles filings, hearings and court appearances across his admitted jurisdictions. He also collaborates with other lawyers in the firm when matters demand broader resources. His work routinely involves the procedural and substantive issues that arise when cases traverse multiple courts.
Outside the courtroom he has remained involved in the practical business of running a law practice. That has included managing client relationships, supervising case preparation and contributing to firm decisions. He has kept that role while continuing to represent clients in a range of matters brought in Georgia courts, South Carolina courts and before the 11th Circuit.
As of 2026 he practices from the Jonesboro office of Millar and Mixon, LLC, handling matters in Georgia, South Carolina and before the 11th Circuit.
