He teaches in the fields of Property Law and Constitutional Law and researches, writes and speaks in the areas of real property law and comparative constitutional law. Additionally, he is the Academic Director of GGU’s acclaimed Honors Lawyering Program and its Paris Nanterre Comparative Law Program. Professor Christiansen attended New York University School of Law as a Root-Tilden Scholar and, following graduation, clerked for Chief Justice Arthur Chaskalson of the South African Constitutional Court. Prior to joining academia, Professor Christiansen was in private practice, specializing in international capital markets work for the London and San Francisco offices of Latham & Watkins. He received an M.A from the University of Chicago as an Andrew W. Mellon Fellow of the National Endowment for the Humanities and received a B.A from the University of Notre Dame.