[2] Marxer attended high school in Feldkirch and then studied law and political science at the University of Innsbruck from 1922 to 1924.

[1] Marxer had a friendship with Josef Hoop and was appointed to serve Deputy Prime Minister of Liechtenstein on 4 August 1928.

[1][4] He resigned this position in 1933 due to his desire to focus on his law practice and was succeeded by Anton Frommelt.

[1] A number of his clients and business partners were Jewish, including Alfred and Fritz Rotter, which made him a target of attacks by the German National Movement in Liechtenstein (VBDL).

[1] He found his final resting place at the Vaduz cemetery next to his parents and his older sister Isabella (1887-1935).