[3] In 1907, Walser, together with Karl Schädler and Jakob Kaiser, submitted a proposal to create a press law.

[1][4][5] He played a key role in the November 1918 Liechtenstein putsch; he along with Wilhelm Beck and Martin Ritter, deeply dissatisfied by Imhof's handling of the economy and who wanted a Liechtensteiner head of state, proposed a motion of no confidence against him in the Landtag on 7 November.

While the Landtag unanimously expressed its confidence in him it was decided, against the constitution and the princely appointed Landtag members, to transfer the power of Governor to a Provisional Executive Committee led by Ritter and Johann II accepted Imhof's resignation on 13 November.

[10][11] In 1938 he was a member of negotiations between the Progressive Citizens' Party and Patriotic Union when they formed a coalition government overseen by Franz Joseph II in the wake of the Anschluss of Austria.

[1][12] From 1939 he was a princley poastal councillor and from 1940 an honorary member of the Historical Association for the Principality of Liechtenstein.