Matthias Rogall

Legal studies at Bielefeld University State bar exam in 1984 Research associate under Prof. Dr. Westermann and Prof. Dr. Otte (Chairs for Civil Law) at Bielefeld University, 1984 - 1986 Bar admission in 1986 Doctor of Laws (Dr. jur.) 1987 Lawyer at the Hamm and Celle Higher District Courts, 1986 - 1989 With the firm since 1989 Certified Specialized Attorney in Tenancy and Condominium Law

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

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

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

Born in 1976 Legal studies at the University of Münster First Exam ("1. Staatsexamen") in 2002 Doctoral studies at the University of Münster Research consultant at the University of Münster's Freiherr-vom-Stein Institute, the academic research center of the Association of North-Rhine Westphalian Districts, 2002 - 2004 Doctor of Laws (Dr. jur.) 2005 Legal clerkship ("Referendariat") at the Paderborn District Court Second (Bar) Exam ("2. Staatsexamen"), bar admission 2006, with t...

Rainer Velte is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law, Public Finance Law and Regulatory Practice. Rainer, who practices law in Düsseldorf, Germany, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rainer is held by other top lawyers in the same geographic and legal practice area.

Kristina Klaaßen-Kaiser is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Kristina, who practices law in Düsseldorf, Germany, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kristina is held by other top lawyers in the same geographic and legal practice area.

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

Lawyer Partner

Herbert Posser is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law, Environmental Law and Public Law. Herbert, who practices law in Düsseldorf, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Herbert is held by other top lawyers in the same geographic and legal practice area.