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Legal

Imprint

Information pursuant to § 5 of the German Digital Services Act (DDG). The German version of this imprint is authoritative.

Provider

Kanzlei Prof. Dr. Frank Martin
responsible: attorney at law and notary Prof. Dr. Frank Martin
Parkstraße 33
65549 Limburg an der Lahn, Germany

Represented by

Prof. Dr. Frank Martin. Legal form: sole practice with an employed attorney.

Contact

Phone: +49 6431 288 88 88
Email: kanzlei@21notar.de

Commercial register

Attorney at law and notary Prof. Dr. Frank Martin is a member of the Frankfurt am Main Bar Association (Rechtsanwaltskammer) and the Frankfurt am Main Chamber of Notaries (Notarkammer). Admitted as attorney at law and notary in Germany. Supervisory authorities: Rechtsanwaltskammer Frankfurt am Main and Notarkammer Frankfurt am Main. Attorney at law Benjamin Meiser is a member of the Frankfurt am Main Bar Association.

Professional rules

Federal Lawyers' Act (BRAO), Specialist Lawyers' Regulation (FAO), Lawyers' Remuneration Act (RVG), Professional Code of Conduct (BORA), Federal Notarial Code (BNotO), Notarisation Act (BeurkG), Official Rules for Notaries (DONot), Court and Notary Fees Act (GNotKG) – available via the Federal Bar (brak.de) and the Federal Chamber of Notaries (bnotk.de).

VAT identification number

VAT ID under sec. 27a UStG: DE 276 147 807

Professional indemnity insurance

Allianz Versicherungs-AG, Großer Burstah 3, 20457 Hamburg, Germany. Coverage extends to activities in the member states of the European Union.

Consumer dispute resolution

We are neither willing nor obliged to participate in dispute resolution proceedings before a consumer arbitration board.

Liability & copyright

The contents of these pages were created with the greatest care. However, we cannot guarantee that the contents are correct, complete or up to date. Our offering contains links to external websites of third parties over whose content we have no influence; the respective provider is responsible for those contents. The content and works created by the site operator are subject to German copyright law. Should you become aware of any infringement, please notify us and we will remove such content promptly.

21Notar

Prof. Dr. Frank Martin – German civil-law notary based in Limburg an der Lahn. Notarisation and certification relating to Bitcoin, crypto assets and digital wealth.

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Contact

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  • Parkstraße 33, 65549 Limburg
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© 2026 Prof. Dr. Frank Martin – Notary in Limburg an der Lahn Legally sound · confidential · independent