UNIVERSITY OF VIRGINIA SCHOOL OF LAW — Robert N. Sayler, a renowned litigator who turned to teaching insurance and oral advocacy courses at the University of Virginia School of Law later in his career, died Wednesday. He was 82. Sayler joined the faculty in 1995 as the John A. Ewald, Jr., Distinguished Visiting Professor of Law when Professor Kenneth S. Abraham asked him to co-teach an advanced seminar on the practical side of liability insurance.