Contact Information

Office:(210) 222 1642

Fax:(210) 222 2453

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David Lopez is a partner of the firm and Head of International Litigation.  His practice is focused on complex cross-border litigation involving multiple proceedings pending simultaneously in U.S. and Mexican courts.  He has prosecuted contract disputes, tort claims, intellectual property matters and many other subject areas.  Mr. Lopez is rated AV Preeminent 5.0 by Martindale-Hubbell.

Mr. Lopez also serves as an expert witness on Mexican law in U.S. courts, having testified on Mexican law in more than 130 cases around the country over the past 20 years.  He is a co-author of the treatise Mexican Law (Oxford 2004) and a former tenured professor at St. Mary’s University School of Law and visiting professor at the University of California – Davis and Baylor University law schools.

Other Practice Areas

Domestic Civil Litigation, International Commercial Arbitration, Expert Witness

Licensed in

Texas (1988), California (1990)


  • English
  • Spanish


  • Georgetown University, Washington, D.C. (Bachelor of Science in Foreign Service, magna cum laude, 1985)
  • Harvard Law School, Cambridge, Massachusetts (J.D. cum laude, 1988)

Professional Memberships

  • State Bar of Texas
  • State Bar of California (inactive status)
  • San Antonio Bar Association, International Law Section
  • Life Fellow, Texas Bar Foundation
  • Fellow, San Antonio Bar Foundation