Overview
John Geilman focuses his practice in commercial disputes, health care, and higher education. John has experience in both state and federal courts at the trial level, including before the Texas Business Court, and has worked on state court appeals.
While in law school, John interned for the school's Office of General Counsel. Following graduation, John clerked for Chief Judge David Nye of the federal District of Idaho and worked on a variety of civil and criminal matters, including contract disputes, administrative law, insurance claims, and Section 1983 cases.
- Texas
- US District Court, Southern District of Texas
- US District Court, Northern District of Texas
- Hon. David C. Nye, U.S. District Court for the District of Idaho, 2021-2022
- J.D., Brigham Young University, J. Reuben Clark Law School, cum laude
- B.A., Brigham Young University, with Honors, Political Science
Representative Matters
- Defense counsel for Houston hospital system in medical malpractice litigation.
- Plaintiff counsel for Houston hospital system in numerous managed care and commercial disputes.
- Advised university on issues involving student misconduct, staff misconduct, litigation matters, and updating policies and procedures.
- Successfully defended university against breach of contract claim brought by a student regarding academic conduct.
- Represented horizontal developer and its affiliates in litigation over property rights related to the construction of data centers and secured a judgment for the developer.
- Secured multiple successful judgments for a client in the financial sector at the summary judgment stage, defeating claims of fraud and related business torts.
- Helped brief multiple appeals in the Texas state Fourteenth Court of Appeals, resulting in favorable decisions for client in the financial sector, defeating claims of fraud and related business torts.
- Successfully represented Texas hospital system in contract dispute with technology contractors.
- Representing oil and gas company in contract dispute with operators.
- Filed pro bono amicus brief on behalf of religious organizations in a First Amendment case in the Eleventh Circuit.
News & Publications
Client Alerts
March Madness in the Law: How Legal Upheaval Is Rewriting College Sports
March 19, 2026
By: Patrick F. Linehan, Ross Weingarten, Alex Wolf, Andrew C. Adams, Danika Duffy Caledonia, John D. Geilman, John Mucciolo
Publications
Higher Education — Year in Review for 2025
March 2026
By: Patrick F. Linehan, Alex Wolf, Dwight J. Draughon, John D. Geilman, Jason D’Antonio, Brittney Denley, Elizabeth Goodwin, Katherine Kyriakoudes, Shontel Stewart, Evelyn Hudson, Yusuf Mian
Client Alerts
Litigation Risk and Regulatory Gaps in the Era of "Street Agents"
March 5, 2026
By: Andrew C. Adams, Patrick F. Linehan, Ross Weingarten, Alex Wolf, Danika Duffy Caledonia, John D. Geilman, John Mucciolo
Client Alerts
It's Not on the House — The Risks of Ambiguity in Prediction Markets
February 20, 2026
By: Andrew C. Adams, Patrick F. Linehan, Ross Weingarten, Alex Wolf, Danika Duffy Caledonia, John D. Geilman, John Mucciolo
Client Alerts
US Tensions with WADA Continue Against an Olympic Backdrop
February 17, 2026
By: Ross Weingarten, Patrick F. Linehan, Andrew C. Adams, Alex Wolf, Danika Duffy Caledonia, John D. Geilman
Client Alerts
February 11, 2026
By: Ross Weingarten, Patrick F. Linehan, Andrew C. Adams, Alex Wolf, Danika Duffy Caledonia, John D. Geilman
Client Alerts
Private Judges in Texas: An Increasingly Popular Option to State Courts and Arbitration
January 8, 2026
Client Alerts
New Executive Order Reshapes Federal Grantmaking: Opportunities and Challenges for Awardees
August 18, 2025
By: Tyler Evans, Patrick F. Linehan, Alex Wolf, Brittney Denley, John D. Geilman
Publications
Higher Education - Year in Review for 2024
March 2025
By: Dwight J. Draughon, Patrick F. Linehan, Ryan P. Poscablo, Alex Wolf, Maia Danna, John D. Geilman, Elizabeth Goodwin, Evelyn Hudson
Previous Employment
- Research Fellow, International Center for Law and Religion Studies, J. Reuben Clark Law School, 2019-2020
Professional Affiliations
- Member, Houston Bar Association; Houston Young Lawyer's Association; J. Reuben Clark Law Society
- Secretary and Assistant Treasurer, Texas Business Law Foundation