[1] He achieved his LLM in 1984 and his PhD in 1985, both from Pontifical Catholic University of São Paulo (PUC-SP).
He was approved in a public competition for the seat of tenured professor at UFPR in 1986, a position he stepped down from in 2006 in order to fully dedicate himself to his other legal activities.
He is a frequent speaker in international conferences and seminars, and has taught hundreds of courses and lectures to government organs and legal institutions around Brazil.
He is the coordinator of the Revista de Direito Administrativo Contemporâneo - ReDAC (Contemporary Administrative Law Review, RT/Thomson Reuters).
Marçal Justen Filho has also published a large number of articles on a wide array of elements of Public Law.