No, not until 1981. Per Wilson Current Biography:
"On September 9, 1981 Jordan announced that he was resigning from the Urban League, effective at the end of the year, to join the Washington, D.C., office of the Dallas law firm of Akin, Gump, Strauss, Hauer and Feld, having been recruited as a managing partner by Robert S. Strauss, the former chairman of the Democratic party. "
Thanks for looking that up. What was he doing at that time, then?