Mr. Lieben, rated "AV" in the Martindale-Hubbell Law Directory, is included among those listed in Who's Who in America and Who's Who in American Law. He has frequently lectured and written on the tax, securities, labor and corporate aspects of estate planning, employee benefits and executive compensation.
He is a Fellow of the American Bar Foundation and the Nebraska State Bar Foundation.
Mr. Lieben is a 1968 magna cum laude graduate of Creighton University and 1971 cum laude graduate of the New York University School of Law. While in law school, he was Article and Book Review Editor of the New York University Law Review.