Katy Ritzmann

Torsten Martini is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Torsten, who practices law in Berlin, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Torsten is held by other top lawyers in the same geographic and legal practice area.

Christian Schede is the Founding Chairman Germany and co-chairs the Global Real Estate Practice at Greenberg Traurig. His practice centers on the real estate and infrastructure sectors, acting for international and domestic institutional investors, private equity funds, financiers, project developers, and investment managers. He regularly advises public sector institutions and enterprises. Christian’s advisory focus covers the structuring and implementation of real estate and infrastruc...

Martin Wirtz works in all fields of intellectual property matters, with a particular emphasis on trade mark, competition, and copyright law, including litigation. A further focus of his work is patent infringement proceedings. His clients include large and medium-sized firms as well as international companies and associations from a wide variety of different areas. Martin Wirtz studied law at the University of Passau, the University of Freiburg, the University of Cologne, and at Queens' Colle...

Christiane Stuetzle is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Media Law. Christiane, who practices law in Berlin, Germany, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christiane is held by other top lawyers in the same geographic and legal practice area.

Born in Duisburg in 1974, Dr. Kostja von Keitz studied law in Düsseldorf. He received his doctorate in European nature conservation and national administrative procedural law in 2005, with a thesis on the subject of “The Legal Protection of Private Individuals against Special Areas of Conservation”. He began his career as a lawyer in 2005, working initially for a major international law firm. He became a specialist in administrative law 2008 and joined ZENK in 2009. He has be...

Hans Georg Helwig is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Hans Georg, who practices law in Berlin, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Hans Georg is held by other top lawyers in the same geographic and legal practice area.

Jörg Michael Siecke is a lawyer and partner at the Berlin office of Friedrich Graf von Westphalen & Partner. He advises on real estate transactions with a focus on commercial real estate, in particular retail and light industrial. He further assists with sale and purchase agreements and legal due diligence cases as well as other aspects of real estate law (commercial tenancy law, neighbor law, broker law). He speaks German and English.

Reinald Günther is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Reinald, who practices law in Berlin, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Reinald is held by other top lawyers in the same geographic and legal practice area.

Joseph is a German Attorney and admitted to the Berlin Bar since 2014. He acts both as party counsel and as arbitrator. His professional experience and expertise in dispute resolution and arbitration include numerous proceedings administered by the ICC, DIS, DIA, GMAA and other institutions, inter alia as arbitrator, lead counsel and secretary to the arbitral tribunal. In addition to his involvement in arbitral and court disputes, his experience includes the negotiation and consultation in se...

Uwe Bärenz is a partner at POELLATH in Berlin. He focuses on private investment funds, GP and investors advice. He is predominantly engaged in private equity funds, including cross-border work, mainly Luxembourg, tax and regulatory issues, filings, terms and conditions, private and public placements, investors' needs (pension funds, insurance companies, investment funds, fund of funds, private clients), complex secondary transactions. He is one of the most experienced advisors for the es...