Barton J. Cerioni

Of Counsel

555 S. Flower Street
30th Floor
Los Angeles, CA 90071
Phone: (213) 683-6618



Indiana University, Bloomington, Indiana
J.D. 2004

University of California Berkeley, Berkeley CA
B.A., English 2001

Practice Areas


  • MLBPA Certified Agent
  • Member, The Sports Lawyers Association
  • Member, American Bar Association
  • Member California Alumni Association
Barton J. Cerioni joined Parker Milliken in 2015 and has been a licensed attorney, practicing law in California since 2005.

Mr. Cerioni’s legal background includes significant litigation experience in addition to general corporate counsel and transactional business work. Mr. Cerioni also has also handled the preparation and management of numerous estate plans for high net worth individuals.

Mr. Cerioni brings a unique set of skills and experiences to the firm. After practicing law in the San Francisco Bay Area for several years, Mr. Cerioni co-founded and remains a partner in Full Circle Sports Management, LLC, an agency (not a law firm) specializing in the representation of professional baseball players. Mr. Cerioni represents his clients in salary arbitration hearings, negotiating their contracts and endorsement opportunities. He also works extensively to protect his clients’ rights pursuant to the MLB Collective Bargaining Agreement and in all of their endeavors. (Parker Milliken is not a partner in, nor does it have any affiliation with, Full Sports Management, LLC.)