Jan Mohrmann has been a lawyer, partner and tax advisor at Oppenhoff since 2022. After completing his vocational training in the upper grade of the civil service at the Dutch Fiscal Administration (Diplom-Finanzwirt, Steuerakademie) and subsequent employment at the Oldenburg Tax Office, he studied law at the Universities of Hanover and Münster. During his legal internship Jan Mohrmann worked at , among others, in the tax law department of Linklaters LLP, Düsseldorf. Before transferring to Oppenhoff, he was a lawyer and tax advisor at i.a. Clifford Chance and KPMG Wirtschaftsprüfungsgesellschaft.