Professor of Private law since 1999 (before that extraordinary professor on behalf of the M.H. Bregstein Foundation), chairman of the Civil Law Department in 2002-2007 and 2009-2013, chairman of the Programme Committee Law (1999-2006), Director College of Law (2014-present), deputy judge to the Gerechtshof van Amsterdam, member of the board of the M.H. Bregstein Foundation, member of the Editorial Board of the European Property Law Journal, member of the board of the Folia Civitatis Foundation. His research focuses on Dutch and European Property and Security Law.