Dorothee Ruckteschler, partner at CMS Hasche Sigle, advises and represents domestic and multi-national corporations in proceedings before German courts as well as in national and international arbitration proceedings, with particular experience in disputes arising from M&A transactions, shareholder disputes and D&O liability cases. She also specialises in energy law disputes and general commercial disputes. She has represented clients in numerous international arbitration proceedings under various major institutional rules. Furthermore, Dorothee Ruckteschler is regularly appointed as an arbitrator both as party-appointed arbitrator and chair - in national and international high-profile arbitration proceedings. Clients and parties frequently recommend her in leading legal industry publications, praising her effective work and unpretentious manner. Dorothee Ruckteschler studied French at the University of Grenoble (France), received her legal training at the University of Freiburg (Germany) and was research fellow at Harvard Law School (USA). She gained experience in Anglo-Saxon law when she worked with the American law firm Perkins Coie in Seattle, Washington, USA. In 1991 Dorothee joined CMS, becoming a partner in 2000. Dorothee Ruckteschler headed the German Dispute Resolution Group from 2002 until 2013. Since 2014, she is head of the CMS International Arbitration Group.