U.S. Says a Convincing 'Lawyer' Lacked One Thing: His License
Paul C Kurtz, who appeared in courts and other legal proceedings on behalf of as many as 100 defendants, fooling judges in Manhattan, Brooklyn and elsewhere, is arrested by FBI for misrepresenting himself as lawyer; his role in plea bargains and sentencing proceedings raises concern that some of those convictions and sentences may be in jeopardy in cases where defendants believed he was genuine lawyer (M)