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Steffen advises principals and contractors on all issues relating to construction and architects’ law, real estate law and in connection with the enforcement of claims both in and out of court.

Further key practice areas include securing and enforcing the copyrights of creative artists and those who exploit them. He also advises on architectural copyright law. In addition, he assists in the search for and registration of national, European and international trademarks, manages international trademark portfolios and advises on licence agreements and the enforcement of clients’ rights against infringements.


  • Studied business law with a focus on taxes (Bachelor’s and Master’s degrees) at the HTW Berlin (LL.B., LL.M.), focus on taxes
  • Studied law with a focus on the Europeanisation and internationalisation of private and commercial law with a secondary focus on intellectual property law at the Humboldt University Berlin, 2013 to 2017
  • Employment in the field of tax at Ernst & Young and Deloitte (Tax)
  • Legal clerkship at the Court of Appeal Berlin, 2020 to 2022, including seats at the Federal Ministry for Economic Affairs and Energy and at a major law firm
  • Personal assistant and research assistant to Prof. Dr. Stefan Haupt, 2015 to 2021
  • Lawyer at Kapellmann since 2022

Further qualifications and memberships

  • Lecturer in business law at HTW Berlin
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