El Dr. Thomas puede practicar en el Estado de New York, el Distrito de Columbia, y en Virginia. Los otros estados en los cuales el ha sido admitido pro hac vice están anotados al final de esta sección.

Cortes en donde el Dr. Thomas puede practicar y ha representado a clientes incluye:

• U.S. Supreme Court
• United States Court of International Trade (localizada em Nova Iorque, N.Y.)
• United States Court of Appeals for the D.C. Circuit (localizada em Washington, D.C.)
• United States Court of Appeals for the Second Circuit (localizada em Nova Iorque, N.Y.)
• United States Court of Appeals for the Third Circuit (localizada em Philadelphia, Pa.)
• United States Court of Appeals for the Fourth Circuit (localizada em Richmond, Va.)
• United States Court of Appeals for the Sixth Circuit (localizada em Cincinnati, Oh.)
• United States District Court for the Southern District of New York (localizada em Nova Iorque, N.Y.)
• United States District Court for the District of Columbia (localizada em Washington, D.C.)
• United States District Court for the District of Maryland (localizada em Baltimore, Md.)
• United States District Court for the Eastern District of Virginia (localizada em Alexandria, Virginia.)

El ha sido admitido pro hac vice para representar a clientes en casos en otras jurisdicciones, entre ellas:

California, Delaware, Florida, Kentucky, Louisiana, Maryland, New Jersey, Pennsylvania, Texas, y las Islas Vírgenes.