Throughout high school, Reyna held after-school jobs and worked at night with his father, cleaning offices.
His practice has involved jury and bench trials, representation of companies, individuals and children, and appearances before municipal, state, and federal courts as well as a wide variety of U.S. administrative and agencies and governmental departments.
Since 1994, Reyna has served as a U.S. panelist for disputes arising under Chapter 19 of the North American Free Trade Agreement (NAFTA), addressing antidumping claims and countervailing duties.
In 1998, Reyna joined Williams Mullen as a partner,[1] and directed the firm's Trade and Customs Practice Group and its Latin America Task Force.
[6] Judge Reyna has authored two books, Passport to North American Trade: Rules of Origin and Customs Procedures Under the NAFTA (Shepards 1995), and The GATT Uruguay Round, A Negotiating History: Services, 1986-1992 (Kluwer 1993).
His legal work has focused on laws, regulations, and governmental measures that affect cross-border movement of goods and services.
In addition, he provided extensive representation in business regulation matters including compliance, export controls, FCPA, customs, trade in services, rules of origin, customs audits/compliance, product standards, food safety, and homeland and border security issues.
Reyna was originally nominated to fill a seat on the United States Court of Appeals for the Federal Circuit on September 29, 2010.
In Monk, the Federal Circuit ruled for the first time that veterans may bring class actions against the U.S. Department of Affairs.
[15][16] Reyna also delivered the 2017 commencement address to graduates of the South Texas College of Law Houston, where he was introduced as "One of the most influential Hispanic lawyers - and people - in our country.
[4][5] In 1989, he was ordained as a Deacon, First Baptist Church of Wheaton, Maryland, where for over ten years he taught a Sunday School Class for senior men (ages 60 and over).
Reyna's professional career reflects his belief that an attorney owes a duty to improve the profession and to be of service to the community.
He devoted countless hours and many resources to the HNBA and in time became a sought after mentor for lawyers and judges of all ages.
He continues his work in the HNBA and speaks throughout the country on the responsibilities of lawyers in America, in particular before local and state Hispanic bar associations.
In 2010, he was a recipient of the Ohtli Medal Award (the highest honor bestowed by the Mexican government for non-Mexican citizens).
The Ohtli is awarded to persons that have been dedicated to opening pathways for Latinos living in the United States.
In addition, he was the founder, and served as the Senior Editor, of the Hispanic National Bar Association Journal of Law and Policy.
He developed his own speaker program that takes him throughout the country speaking before America's youth and, in particular, the many local and state Hispanic bar associations.
His messages are inspirational and move audiences to seek excellence in their work and diligence towards meeting life goals.
In addition, he is a frequent keynote speaker before local, state and national bar associations that are devoted to intellectual property law.