Rommel Casis is a full time tenured professor of the College of Law of the University of the Philippines. He is the Director of the Institute of International Legal Studies of the University of the Philippines Law Center.
He is an editor of the Philippine Yearbook of International Law, the annual publication of the Philippine Society of International Law where he also serves as Executive Director.
He has published several law treatises in English, the most recent being a treatise on Contracts published by Lexis Nexis.
He was a Harlan Fiske Stone Scholar of Columbia Law School where he obtained his LL.M. and was also awarded the Parker School Certificate for Achievement on International and Comparative Law.
He also holds two degrees from the University of the Philippines: LL.B. and B.A. Political Science.