Sonnhild Draack

John Büttner advises on all aspects of national and international business tax law, including areas where it intersects with corporate and inheritance law. He has many years of experience in international tax law, criminal tax law, tax litigation, the taxation of restructurings, real estate taxation, and the taxation of capital investments. In addition, Mr Büttner advises private clients, families, and family businesses on ongoing tax matters, including asset structuring, (corporate...

Alexander Schürmann is a lawyer recognized by Best Lawyers in the practice areas of Arbitration and Mediation, International Arbitration and Litigation. Alexander practices law in Frankfurt/Main, Germany Best Lawyers has recognized Alexander Schürmann since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alexander Schürmann is held by other lawyers.

Johannes Honzen is a lawyer recognized by Best Lawyers in the practice area of Real Estate Law. Johannes practices law in Frankfurt/Main, Germany Best Lawyers has recognized Johannes Honzen since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Johannes Honzen is held by other lawyers.

Till Kemper is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law. Till, who practices law in Frankfurt/Main an Stuttgart, Germany, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Till is held by other top lawyers in the same geographic and legal practice area.

Lawyer Associated Partner

Lawyer, Accredited Specialist in Intellectual Property RightsPartner

Bolko Ehlgen is a lawyer recognized by Best Lawyers in the practice area of Intellectual Property Law. Bolko practices law in Frankfurt/Main, Germany Best Lawyers has recognized Bolko Ehlgen since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Bolko Ehlgen is held by other lawyers.

The founding partner Dr. Björn Boerger defends and advises national and international companies and their managers in all areas of commercial criminal law and in relation to the criminal law aspects of internal investigations and legal disputes under civil law. He has extensive experience in preventive consulting of financial institutions and corporate groups from a criminal law perspective (corporate compliance) and internal investigations of suspicious incidents – especially thos...

Mark Oliver Kühn is specialised in offering legal advice on information technology and privacy law, industrial property rights as well as contract and commercial law. Mr Kühn advises and supports national and international companies in designing corporate processes to ensure legal certainty, in particular in the fields of software contract law and open source, IT outsourcing and project contracts, data privacy and protection, e-commerce and multimedia law, electronic payment systems...

Prof. Dr. Antje Boldt joined RITTERSHAUS in 2021 as partner. She specialises in advising on the preparation and implementation of projects in the areas of infrastructure, school and day-care centre construction as well as health care, e.g. hospital construction. In particular, she focuses on new contract management forms of the integrated project alliance and methods from Lean Construction Management and Building Information Modelling. Antje Boldt is a professor of commercial law at the Frese...