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Dr. Klaus J. Müller

German Attorney at Law since 1996
Certified Commercial and Corporate Law Specialist since 2006
German Notary since 2010

Languages: German, English, French

  • Real Estate Transactions
  • M&A
  • Financing
  • Corporate Law

Klaus notarizes both national and international M&A and real estate transactions, in each case drawing upon his extensive experience as an M&A and real estate attorney.  Further, he is involved in day-to-day corporate and real estate matters.

  • Notarization of the acquisition of an office building by an institutional investor
  • Notarization of the acquisition of a shopping center by a foreign institutional investor
  • Notarization of the acquisition of a German company operating in the financial markets industry by a foreign strategic investor
  • Notarization of the acquisition of a German pharmaceutical company by a US competitor
  • Notarization of the acquisition of a substantial residential real estate portfolio by an institutional investor

Klaus is a much sought-after speaker at conferences and guest lecturer at universities. He regularly publishes articles on corporate, real estate matters, and notarial matters in both leading newspapers and legal publications. He is also the author of the M&A/Corporate Law SCHIEDERMAIR Newsletter as well as a co-author of the Real Estate Newsletter.

Selected Publications

  • “Kommentar zum Aktiengesetz” (Stock Corporation Act, commentary) (ed. by Thomas Wachter), RWS Verlag, Cologne, 4th edition, 2022, 2129 p. + XX p. (my contribution: groups of companies based on contract, sec. 291 – 307 Stock Corporation Act (88 p.)).
  • “The GmbH. A Guide to the German Limited Liability Company”, C.H. Beck, Munich, 3rd edition 2016, 222 p. + XX p.
  • “How to Change Corporate Structures in Germany. A Guide to Mergers and other Transformations”, 2005, 104 p. (appeared as Mayer, Brown, Rowe & Maw publication) (publication in English).
  • “Haftung des Erwerbers von GmbH-Geschäftsanteilen und Schutz bei anfechtbarer Übertragung” (The liability of a purchaser of shares in a limited liability company and protection in cases of voidable transfers), Peter Lang, Frankfurt am Main etc., 1996, 229 p. + XXXVI p. (doctoral thesis), reviewed three times in legal journals, viz. in GmbHR 1996, 718 – 720 (by Reinhard Geck), in NJW 1997, 2303 – 2304 (by Peter Limmer) and in ZHR 161 (1997), 565 – 569 (by Peter Mankowski).
  • “Reichweite der Vertretungsmacht des GmbH-Geschäftsführers bei der Veräußerung des gesamten Gesellschaftsvermögens“ (Can the managing director of a German limited liability company sell the entire assets of the company?), in: NZG 2019, 807 – 813.
  • “Elektronische Datenträger als Anlagen notarieller Urkunden?“ (Can portable electronic data bases be attached as exhibits or schedules to a notarial deed?), in NJW 2015, 3271 – 3275.
  • “Auslandsbeurkundungen von Abtretungen deutscher GmbH-Geschäftsanteile in der Schweiz“, (Notarization of the transfer of shares in German Limited Liability Companies by a Swiss notary), in: NJW 2014, 1994 – 1999.
  • „Unterjährige Beendigung des Beherrschungs- und Gewinnabführungsvertrages beim Unternehmensverkauf“ (Termination of a domination and profit and loss pooling agreement in the course of a running fiscal year on the grounds of a sale transaction), in: Von der Sache zum Recht, Festschrift für Volker Beuthien zum 75. Geburtstag, Munich 2009, p. 183 – 197 (co-author: Dr. Magnus Dorweiler).
  • “Immobilienkauf durch Anteilserwerb – lässt sich mit share deals noch Grunderwerbsteuer sparen?” (Real estate acquisitions through share deals – still a tax-saving opportunity?) in: Coresis Management GmbH online-Newsletter, December 2018.
  • „Nachgefragt: Freie Hand beim Verkauf – welche Formalien gelten bei der Teilung von GmbH-Geschäftsanteilen?“ (How to split shares in a GmbH and sell the resulting portion(s)), in: FAZ of February 26, 2014, no. 48, p. 19.

Complete overview of all publications


  • Corporate Law Association
  • German-American Lawyer’s Association
  • Frankfurt Law Society
  • Marburg University Council


  • Academic Advisory Board Member of Notary Chamber Frankfurt am Main

Before joining SCHIEDERMAIR, Klaus was a partner at Mayer Brown LLP for many years, advising on domestic and cross-border real estate and M&A transactions.

From 1993 to 1995 he served as an Assistant Lecturer at the Institute for Commercial and Trade Law of the University of Marburg, where he also earned a Ph.D. degree for his thesis on the liability of an acquirer of shares in a limited liability company. From 1990 to 1993, he completed his legal traineeship in Lübeck, Kiel, Frankfurt am Main, and Paris and passed the bar exam in Hamburg with honors in 1993. From 1985 to 1990 he studied law in Freiburg, Lausanne, and Hamburg.  In 1988 he completed a stint at the German-Belgian- Luxembourg Chamber of Commerce in Brussels.  In 1987 he was a trainee at Herbert Smith in London and in 1986 at the Vereins-und Westbank in Hamburg.

JUVE lists Klaus as one of the notaries in Frankfurt am Main to go to. In BEST LAWYERS he appears as one of Germany’s leading real estate lawyers. In 2022, he was honored by Handelsblatt in the category “Germany’s Best Lawyers” in the legal fields of “Mergers and Acquisitions” and “Real Estate Law”.