Elisabeth Muller has been a fellow of the Salzburg Seminar and an attorney from 1975 to 2018. Until 1 March 2004 she was a partner at AKD Prinsen van Wijmen, attorneys and civil law notaries, and specialised in (international) contract law (such as distribution contracts), Dutch and European competition law (post-graduate course Grotius 2004) and employment law (post-graduate course at the Erasmus University Rotterdam, PALA 2006).