• 1996

    Second legal state examination and accreditation as lawyer

  • 1996 to 1998

    Doctor of laws, topic: “The insolvency – conditioned liability of the chief executive officer”

  • 1999

    Activity with prominent insolvency administrators in Berlin

  • 2000

    Establishment of the law firm Lenhardt lawyers

  • since 2001

    Lecturer for the tax counsel Berlin and Brandenburg within the range insolvency law