Member of the Association for Sewage Techniques, the Association for the Institute for Law concerning Water Economy, the Institute for Environmental Protection and Planning Law, the Medical Law working group in the German Bar Association, and the International Masters of Gaming Law Association.

Legal advice and serving as counsel for the largest sports betting providers in Germany in sports‑​betting concession proceedings and related legal disputes; assisting and representing Tipico Co. Ltd. in tolerance proceedings instituted by Hesse, Bavaria and Rhineland‑​Palatinate; legal advice and serving as counsel for Personal Exchange International Ltd, Malta, in administrative and competition‑​law proceedings as well as in concession proceedings; legal advice and acting as counsel for Deutsche Sportlotterie (clarification of the legality of ancillary provisions in lottery permits and advertising permits); legal advice and acting as counsel for Racebets International Gaming Ltd. in online licensing proceedings (precedence‑​setting proceedings).