Dr. Sonja Hoffmann (née Lang)

Partner, Frankfurt



Based in Frankfurt, Sonja is a member of the Dispute Resolution group. She supports domestic and multinational clients in complex commercial disputes with a particular focus on banking, corporate, real estate and technology litigation.

Sonja has a significant trial, hearing and appellate experience in the area of collective redress. Her skills as a litigator has attracted domestic as well as international clients. She successfully litigated hundreds of cases throughout Germany for financial institutions concerning claims for damages regarding allegedly deficient prospectuses and investment advice and derivate-related claims as well as cases for social media and telecommunication companies concerning data protection, defamation and hate speech. She is a highly experienced specialist in advising clients in mass action proceedings.

Furthermore, Sonja is a liability risks expert and supports financial industry, corporate, real estate and technology clients in handling domestic and international disputes, regardless of their scale or multijurisdictional complexity. As part of M&A transactions, Sonja advices clients on litigation matters. 

Sonja regularly speaks at conferences and client seminars on commercial litigation topics and is a lecturer of the Deutsche Anwaltakademie.

Bars and Courts
Certified Lawyer for Bank and Capital Market Law
Second State Exam
Higher Regional Court of Cologne
Dr jur
University of Cologne
First State Exam
Eberhard Karls University Tübingen


German Bank, 2013–ongoing
Exclusive representation with regard to Wölbern-Funds.

German Bank 2012–ongoing
Exclusive representation with regard to Swaps.

German Banks and European Financial Service Provider, 2011–ongoing
Representation regarding the clients' defence against claims for damages in connection with funds, certificates and derivatives.

Speaking Engagements

"Collective Litigation in Germany, the EU and the U.S.: Model Declaratory Proceedings under Scrutiny: Class action light?", 24 Oct: Client Seminar – White & Case Office – Frankfurt, Germany


New clarity/ambiguity regarding internal commissions and reimbursement in investments (Neue (Un-)Klarheit bezüglich lnnenprovisionen und Rückvergütungen bei Kapitalanlagen), NJW, Issue 40, pp. 2909–2913, 2014, (co-author with Stefan Lars-Thoren Heun-Rehn and Isabelle Ruf)

Valid consent in data protection law taking into account the Proposal for a Regulation of the European Parliament and of the Council on the protection of individuals with regard to the processing of personal data and on the free movement of such data, ELR, Issue 6, pp. 206–215, 2013, (General Data Protection Regulation) of 25 January 2012 (co-author with Stefan Peintinger)

Liability for incorrect securities prospectus containing an incomplete description of intragroup investments. Commentary on the decision of the Federal Court of Justice of September 18, 2012 – XI ZR 344/11, ZWH, Issue 7, pp. 287–290, 2013, (co-author with Stefan Deller)

The requirements for ad hoc disclosure in protracted processes (Ad-hoc-Publikationspflicht bei zeitlich gestreckten Vorgängen), ELR, Issue 10, pp. 262–269, 2012, (co-author with Julia Sitter and Stefan Deller)

The investment advisor‘s duty to provide information about legal risks resulting from changes in the law; duties to identify and advise about risks. Commentary on the decision of the Federal Court of Justice of December 1, 2011 – III ZR 56/11, WuB, July, pp. 358–388, 2012, (co-author with Markus Hauptmann)

The road towards achieving insolvency-proof direct debits, NJW, Issue 48, p. 3484 et seqq., 2010, (co-author with Mareile Müller-Felsch)

Grossly negligent ignorance of an error in the advice provided by an investment adviser, BB, Issue 34, p. 2005 et seqq., 2010, (co-author with Mareile Müller-Felsch)

Duty of investment advisers to review the business press in timely fashion (Federal Court of Justice – Judgment of 5 November 2009 III ZR 302/08), BB, Issue 13, p. 725 et seqq., 2010, (co-author with Markus Langen)

Awards and Recognition

Recommended Lawyer: Dispute Resolution – Germany, The Legal 500 Germany, 2017/2018