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Katherine Mallon


Katherine Mallon is an associate attorney at Davis & Santos. Her practice focuses on commercial litigation, complex business litigation, and financial institution litigation.

Prior to joining Davis & Santos, Katherine practiced at an oil and gas litigation firm, where she gained valuable experience in a various areas of the law, including business litigation, property disputes, commercial contract disputes, fiduciary issues, and substantive oil and gas matters.

While in law school, Katherine served as the Executive Managing Editor of Volume 52 of the Texas Tech Law Review. She also served as a Legal Practice Teaching Fellow, mentoring first-year law students and teaching them the basics of legal writing, and was also a member of the Board of Barristers.

Katherine is a South Texas native, born and raised in Laredo, Texas and attended St. Mary’s University in San Antonio where she received her undergraduate degree. Fluent in Spanish, Katherine is able to assist Spanish-speaking clients.


  • B.A., St. Mary’s University, Political Science, Minor in Economics, 2017, cum laude
  • J.D. Texas Tech University School of Law, 2020, cum laude



Memberships & Activities

  • State Bar of Texas
  • Texas Young Lawyers Association
  • San Antonio Bar Association
  • San Antonio Young Lawyers Association
  • Federal Bar Association


Admitted To Practice

  • Texas (2020)
  • New Mexico (2020)
  • United States District Court for the Western District of Texas (2021)
  • United States District Court for the Southern District of Texas (2022)

Board Certification

Practice Areas