Michael Kreisler

Niclas Hellermann is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Environmental Law and Public Law. Niclas, 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 Niclas is held by other top lawyers in the same geographic and legal practice area.

Victoria Johnson is a specialist lawyer for information technology law, TÜV-certified data protection officer and auditor, and certified whistleblowing officer based in Berlin. While completing a part-time doctorate in commercial law focused on fundamental rights, she advises public and private sector clients—from start-ups to international corporations—on all aspects of digitisation, IT law, and data protection. Her expertise includes contract drafting, data protection manag...

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.

Constanze Püschel is a top attorney recognized by Best Lawyers in the practice area(s) of Biotechnology Law and Life Sciences Practice. Constanze, who practices law in Berlin, Germany, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Constanze 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...

Tarek Mardini is a partner in the private funds practice group of POELLATH in Berlin. He specializes in comprehensive advice on contract, corporate, regulatory and tax law and market practice in the area of alternative investment funds and asset management. He advises German and international fund managers on fund structuring, as well as institutional investors and family offices on investments in private equity, venture capital, private debt, infrastructure, real estate funds and other alter...

Werner Schnappauf is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Werner, who practices law in Berlin, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Werner is held by other top lawyers in the same geographic and legal practice area.

Ronald Buge is a partner at POELLATH in the private funds team in Berlin. Ronald advises fund managers on legal and tax matters relating to the structuring of alternative investment funds. Further, he advises institutional investors such as insurance companies and pension funds as well as family offices in connection with investments in such funds. He focuses on German and international tax law, including investment tax law, procedural law and tax compliance issues (FATCA, CRS, DAC 6). Client...

Wencke Bäsler advises real estate companies on all aspects of real estate transactions, including asset deals, share deals and the management of real estate properties. She also advises on corporate investments and participations, in particular joint ventures. Wencke has broad experience in advising national and international real estate investors, and has wide-ranging experience in handling the sale and acquisition of real estate portfolios, including structuring and financing. Another ...

Gunnar Baumgärtel is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law. Gunnar, who practices law in Berlin, Germany, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gunnar is held by other top lawyers in the same geographic and legal practice area.