 With the Jordanian deportation of the Palestine Liberation Organization (PLO) figure Abu Jihad and the continued crisis between the Jordanians and the Palestinians, among other reasons, Abdul Hadi resigned and returned to Jerusalem.Abdul Hadi participated in many conferences, among them the Salzburg Seminar for Divided Cities - Berlin, Jerusalem, and Belfast in February 1987.The same year, together with a group of Palestinian intellectuals and academics Abdul Hadi founded the Palestinian Academic Society for the Study of International Affairs (PASSIA) in March 1987 to provide a forum for the free debate and analysis of a plurality of local and foreign perspectives.