David T. Hardy has practiced law since 1975. He was born in Phoenix to an old-line Arizona family: his great-grandfather was Nat Hickman, a gunslinging outlaw who took the alias of Charles W. Hardy when he fled to the Arizona Territory in 1872.
He has handled cases up to the U.S. Supreme Court, and won a death penalty appeal in the Arizona Supreme Court. From 1982 to 1992 he worked in Washington at the Office of the Solicitor, U.S. Department of the Interior, mostly representing the U.S. Fish and Wildlife Service.
Hardy has five books and thirteen law review articles in print; one of the articles has been cited by the U.S. Supreme Court and eleven of the thirteen U.S. Circuit Courts of Appeals.