A lawyer with a B.S. in computer science, Kiwi earned his J.D. at 19 from Harvard Law School, clerked for Judge Harris Hartz of the U.S. Court of Appeals for the Tenth Circuit, was a Ph.D. student in economics at Stanford, taught corporate law at Northwestern, and was a founding partner of Camara & Sibley LLP in Houston. His articles on constitutional law, corporate law, and international law have been published in the Yale Law Journal and the Journal of Corporation Law.