Klaus Höpken born on August 14, 1955 in Brake.
In the years 1975 - 1980 he studied social and legal sciences at the Free University of Berlin. At the beginning of his career he worked as a researcher, followed by several years as an attorney at the Berlin office Finkelnburg, Clemm & Partner.
In 1983 he was approved as a lawyer in Berlin. In 1986 he opened his own office, and in 1996 he began working actively as a Notary.
In the years 2003–2005 he was the president of the Grundbesitz- und Verwaltungsgesellschaft mbH.
Barbara Loth was born on January 14, 1957 in Duisburg/North Rhine-Westphalia. She studied law at the Free University of Berlin.
Initially, Barbara Loth worked from 1987 a lawyer specialised in labour law. At the same time, she worked as a researcher at the Free University of Berlin and then at the Humboldt University of Berlin. In 1991 she changed her job becoming a judge at the Labour Court in Berlin. In the period from 2006-2011 she was employed as a councillor of the Berlin-Steglitz-Zehlendorf district for economy, health and communication, and recently as a deputy mayor. From December 2011 to December 2016 she worked in the Senate of the City of Berlin as the Secretary of State for Labour, Integration and Women. Since 2017, she has been working as a lawyer specialised in labour law.