John G. Williamson
Associate / Bay Area Houston Office

John Williamson is member of the firm’s litigation group, and concentrates his time on Commercial Litigation disputes.

John is a proud graduate of Rice University where he played four years of Division I baseball, and studied Political Science. John was drafted in the 23rd round of the 2015 Major League Baseball Draft following his senior year and played three seasons in the Chicago Cubs minor league system, serving as a left-handed relief pitcher. Following his baseball career, he chose to pursue the practice of law, following in his father’s footsteps, who was a successful trial attorney in Houston, Texas. In October 2020, John became eligible for MLBPA certification as a Player Agent. John’s professional sports background and volunteer baseball coaching for West University Little League has helped him achieve a unique perspective on the collaborative, yet competitive, nature of litigation.

John began his career as a student attorney working for two legal clinics, the Consumer Law Clinic and the Entrepreneurship and Community Development Clinic, where he was able to provide supervised legal services to a variety of clients in the Greater Houston area. John’s passion is empowering others, and he enjoys doing so through his law practice at Greer Herz and Adams.


  • University of Houston Law Center – J.D., Cum Laude
  • Rice University – Bachelor of Arts in Political Science


  • Texas
  • United States District Court for the Southern District of Texas

Professional Activities & Memberships

  • State Bar of Texas
  • American Bar Association

Civic Involvement

  • Head Coach of West University Little League baseball team