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Antonius is specialized in national and cross-border corporate transactions, particularly in the field of corporate acquisitions. He frequently advises on the initiation, negotiation and implementation of corporate transactions. Another key practice area is corporate restructuring. Antonius also provides comprehensive advice on the law of partnerships and corporations and advises managing directors inter alia on avoiding liability risks and averting liability cases.

In addition, Antonius advises and represents companies in competition law, both strategically and with regard to individual measures.

Antonius supports large and medium-sized companies with a focus on the SME sector. He has extensive experience in advising companies in the industry and services sectors as well as financial investors.

What others say

One of the most frequently recommended lawyers for Corporate Governance & Compliance Practice
Handelsblatt/Best Lawyers® 'Germany's Best Lawyers 2022'

Recent work

  • Advising the German Trunk Group on the acquisition of Austrian press wholesaler Valora Services Austria GmbH
  • Advising the Bergmann Group on the sale of the automobile supplier Bergmann Automotive to German Equity Partners IV
  • Ongoing provision of advice to a financial investor on the purchase and sale of shares in the field of e-commerce
  • Advising a company from the chemical trading sector on the participation of a financial investor in the context of an atypical silent partnership
  • Advising a company on the spin-off of 22 properties and the restructuring of the operating company
  • Advising the shareholders of various companies from the IT sector on the sale of all national and international companies
  • Out-of-court support and in-court representation of private individuals in various shareholder disputes
  • Ongoing advice to managing directors in the defence of claims for damages due to alleged breaches of duty in the run-up to insolvencies

Curriculum vitae 

  • Studied law at the University of Trier, 1986 to 1992
  • Legal clerkship at the Higher Regional Court Koblenz, 1992 to 1995
  • PhD on police law at the Humboldt University Berlin with Prof. Dr. Bernhard Schlink, 2003
  • Lawyer since 1996, at Kapellmann since 2002

Further qualifications and memberships

  • Honorary professor in commercial law at the Hochschule Niederrhein University of Applied Sciences, Mönchengladbach
  • Visiting lecturer in commercial law at the IST University of Applied Sciences (IST Hochschule für Management), Düsseldorf (to 2017)
  • Member of the Corporate Lawyers Association (Gesellschaftsrechtliche Vereinigung)



Ewers/Scheef, Risiken bei der Abfassung von ARGE-Verträgen, Der Baurechtsberater 2005, S. 24 - 26

Ewers, Die neueste BGH-Rechtsprechung zur Verkäuferhaftung für unrichtige Angaben über finanzielle Belastungen beim Immobilienerwerb; DStR 1999, 421 ff


Ewers, Zeitliche Grenzen der polizeilichen Störerhaftung dargestellt am Beispiel der Haftung für Altlasten (zugleich ein Beitrag zum Problem der Verjährung im Verwaltungsrecht)

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