2020, 2021, 2022, 2023, 2024: Best Lawyer Award
2016: Specialist lawyer in Public Procurement Law
Since 2002: Associated partner of the law office Oppler Buechner Rechtsanwälte PartGmbB, Munich
From 2000 to 2002: Associated partner of the law office DE WITT OPPLER (Berlin, Munich, Freiburg, Stuttgart)
1996 to 2000: Building up an own law office; diverse experts and assignments; publications
1995: lawyer-admission
1997: Graduation as „Doctor juris“ at the University of Bielefeld, Northrhine-Westfalia
1995: Dissertation about the subject „Public Tendering and remedies by German and European Law“
November 1994: Second examination; senior barrister (Rechtsassessor)
May 1994 to October 1994: German Federal Ministry of Economics at Bonn, Department for public tendering and competition law
1992 to 1994: Practical Education as a junior barrister in the German Federal state of Rhenania-Palatinate (Civil Court at Bad Kreuznach, law office Dres. Wasserburg & Urschbach at Mainz, Police Department Mainz)
1991/1992: end of law studies (first examination); junior barrister (Rechtsreferendar)
October 1985: begin of law studies at Johannes Gutenberg-University at Mainz
May 1985: end of secondary school (Ev. Stift. Gymnasium, Guetersloh, Germany); matriculation standard