1990 Mag.iur. (University of Vienna, Law School)
1992 Dr.iur. (University of Vienna, Law School)
1991 – 1997 Assistant Professor at the Institute for Constitutional and Administrative Law/ Department of Business Law (University of Vienna, Law School)
1992 – 1997 Court practice and Associate in Vienna
1993 – 2010 Lectures in Constitutional and Administrative Law/ Public Law (University of Vienna, Law School; Faculty of Economics)
2000 – 2009 Partner of “SPOHN RICHTER & PARTNER Rechtsanwälte OEG”
2005 – 2006 Arbitration ic Altmann et al. / Müller Hofmann vs. Republic of Austria (Adele Bloch-Bauer et al., Klimt; Amalie Zuckerkandl, Klimt)
2006 – 2007 Parliamentary Investigation Committee ic Eurofighter
2007 – 2015 Board member Leopold Museum-Private Foundation
since 2008 Board member of the Vienna Bar Association, deputy member of the Austrian Bar Association
2009 – 2012 Board member Künstlerhaus
2010 Restitution Portrait of Wally, Schiele
2012 Restitution Houses by the Sea (Row of Houses), Schiele
2012 Parliamentary Investigation Committee to clarify allegations of bribery
2013 Restitution Water Serpents II, Klimt
2013 Gustav Klimt | Wien 1900 Private Foundation
2015 Restitution Portrait of Gertrud Loew, Klimt