Background
MCMAHON, JOHN was born on April 8, 1957 in Providence, Rhode Island, United States.
MCMAHON, JOHN was born on April 8, 1957 in Providence, Rhode Island, United States.
Georgetown University (Bachelor of Science, 1979. Juris Doctor, 1984).
Working as a partner of MARRIOTT HOTELS & RESOR TeamSpeak WASHINGTON, District of Columbia Admitted to the bar, 1984, District of Columbia.
The District of Columbia Bar. American Bar Association. (Director-Tax Research and Planning).