Bowen

Marshall focuses his practice on appellate law, including providing appellate support to trial teams in state and federal court. Prior to joining Butler Snow, Marshall clerked at both of Texas’s high courts: the Supreme Court of Texas and the Texas Court of Criminal Appeals. Marshall also previously worked as a public affairs consultant and in public policy in the Texas Legislature.  Now in private practice, Marshall applies his acute understanding of appellate and legislative procedure to assist clients with complex problems before and during all stages of litigation.

• Appellate & Written Advocacy
• Commercial Litigation
• Government Relations
• Governmental Litigation
• White Collar, Compliance & Government Investigations

Marshall’s experience includes representing businesses, government entities, and individuals in a wide variety of appellate matters in the Texas intermediate appellate courts, the Supreme Court of Texas, and the United States Court of Appeals for the Fifth Circuit.  Marshall has also advised clients on legislative and regulatory procedures and represented businesses and individuals before the Texas Legislature and Texas state agencies.

He frequently speaks and writes about topics related to appellate law.  He has authored articles, appeared on podcasts, and spoken at continuing legal education events about a variety of appellate law and litigation matters.

Marshall is also an active member of his community.  He currently serves as a Commissioner on the City of Austin Electric Utility Commission, Secretary of the Board of Trustees for the Shield-Ayres Foundation, and on the Boards of Directors for Shield Ranch Foundation, the Texas Advocacy Project, and the Texas Agricultural Land Trust, where he also chairs the Policy Committee.  He is a founder and past-board member of the Regents School of Austin Alumni Network and has helped coach high school students in mock trial competitions.  He is also a member of the State Bar of Texas (Appellate Section), the Texas Bar College, the Pro Bono College, the Austin Bar Association (Civil Appellate Section and Austin Young Lawyer’s Association), the Aggie Bar Association, and the Federalist Society.  Marshall is also a member of the Barbara Jordan Inn of Court.

Marshall obtained his J.D., cum laude, from St. Mary University School of Law, where he served on the editorial board of the St. Mary’s Law Journal and received the St. Mary’s University Presidential Award. He also holds an M.A. in Theology from St. Mary’s University, with honors, and a B.A. in Political Science from Texas A&M University, where he was a member of the Student Government Association Executive Council. He is admitted to the State Bar of Texas.

• Marshall’s appellate experience includes full merits briefing in the United States Court of Appeals for the Fifth Circuit, the Supreme Court of Texas, and several intermediate appellate courts in Texas. Marshall has also presented oral argument to the United States Court of Appeals for the Fifth Circuit, in which he obtained a complete victory for his clients. Additionally, Marshall has assisted litigation teams with pre-trial legal analysis and strategy from an appellate perspective and has worked with trial-teams in drafting jury charges and providing counsel on error preservation issues. 
• Marshall has also assisted clients in navigating the legislative and regulatory process, including drafting and facilitating the filing of proposed legislation, arranging client testimony at legislative hearings, providing legal counsel on pending legislation, advising clients on the necessity and process for obtaining licenses from administrative agencies, and assisting clients in responding to regulatory enforcement actions.
• Marshall’s litigation experience includes assisting clients in responding to civil and criminal investigative subpoenas, drafting pre-trial dispositive motions in state and federal cases, and assisting clients in managing complex discovery disputes.
• Legislative Director for Texas State Representative Brooks Landgraf, 84th Legislative Session (2015)
• Government Affairs Consultant, Caddo Associates (2012­–2015)

• BL Rankings, The Best Lawyers in America®
  • Commercial Litigation, 2024-2025

• Texas, 2018
• U.S. District Courts
  • Texas: Western, Eastern, Southern, Northern
• U.S. Court of Appeals
  • 5th Circuit

• St. Mary's University School of Law, J.D., cum laude, 2018
  • Solicitations/Articles Editor, St. Mary’s Law Journal
  • Staff Writer Excellence Award, St. Mary’s Law Journal
  • St. Mary’s University Presidential Award
  • Pupil, William S. Sessions Inn of Court
  • Dean’s List
  • Teaching Assistant, Legal Research and Writing
  • St. Mary’s Institute on World Legal Problems, Innsbruck, Austria
• St. Mary's University, M.A., Theology, 2018
  • Distinguished Graduate
• Texas A&M University, B.A., Political Science, 2012
  • Student Government Association Executive Council

• Clerkship, Honorable Paul W. Green, Supreme Court of Texas, September 2019-August 2020
• Clerkship, Honorable Kevin Patrick Yeary, Texas Court of Criminal Appeals, September 2018-September 2019

• State Bar of Texas
  • Appellate Section
• Member, Barbara Jordan Inn of Court
• Texas Pro Bono College
• College of the State Bar of Texas
• Austin Bar Association
  • Civil Appellate Section
  • Austin Young Lawyer’s Association
• Federalist Society
• Aggie Bar Association
• The Association of Former Students, Texas A&M University

• Presenter, “The Texas Court of Criminal Appeals with Judge Kevin Yeary,” Austin Chapter of the Federalist Society, March 28, 2024.
• Presenter, “After the Final Order: The Appeals Process,” Austin Bar Association Administrative Law CLE, March 22, 2024.
• Presenter, “This is Not a Drill: Emergency Relief in Texas Appellate Courts,” Comal County Bar Association, March 21, 2024.
• Presenter, “This is Not a Drill: Emergency Relief in Texas Appellate Courts,” Tarrant County Bar Association, Jan. 12, 2024.
• Presenter, “The Texas Court Realignment: Business Court & Fifteenth Court of Appeals,” Texas Aggie Bar Association, Oct. 18, 2023.
• Presenter, “This is Not a Drill: Emergency Relief in Texas Appellate Courts,” San Antonio Bar Association, May 18, 2023.
• Keynote Speaker, St. Mary’s Law Journal Vol. 54 Awards Banquet, April 28, 2023.
• Co-Author, Interlocutory Appeals, State Bar of Texas Advanced Civil Appellate Conference, September 2022.
• Presenter, “Delta What? Procedural Rulemaking Issues and the Battle over Hemp Derived Cannabinoids,” TexasBarCLE, April 27, 2022.
• Presenter, “This is Not a Drill: Emergency Relief in Texas Appellate Courts,” Austin Bar Association, April 22, 2022.
• Presenter, “Appellate Mistakes in Trial Courts,” Denton County Bench Bar Conference, April 1, 2022.
• Guest, “A Peek Behind the Appellate Curtain,” Beyond Hourly with Omni Bridgeway Podcast, August 30, 2021.
• Guest, “Taking it to the Next Level,” Embrace Your Strengths Podcast, July 13, 2021.
• Co-Author, “Making Use of Dissenting Opinions,” DRI, Certworthy, Vol. 21, Issue 2, November 23, 2020.
• Presenter, “Texas Supreme Court Update,” Austin Bar Association, Civil Appellate
• Section, November 19, 2020.
• Guest, “Clerking at the Texas Court of Criminal Appeals and the Texas Supreme Court,” Texas Appellate Law Podcast, October 1, 2020.
• Author, Avian Jurisprudence and the Protection of Migratory Birds in North America, 49 ST. MARY’S L.J. 837 (2018).

• Secretary, Board of Trustees, Shield-Ayres Foundation, 2014-Present
• Secretary, Board of Trustees, Shield Ranch Foundation, 2021-Present
• Board Member, Texas Agricultural Land Trust, 2020-Present
  • Chair, Policy Committee, 2021-Present
• Commissioner, City of Austin Electric Utility Commission, 2021- 2023
• Board Member, Texas Advocacy Project, 2020-2023
• Regents School of Austin
  • Founder and Board Member, Regents Alumni Network, 2013-2020
  • Former Volunteer Mock Trial Coach