He attended high school in Feldkirch and then studied law in Vienna, where he received a diploma in 1925.

[1] He played a key role in negotiations between the Patriotic Union and the Progressive Citizens' Party on forming the coalition government between the two parties overseen by Franz Joseph II in the wake of the Anschluss of Austria.

[5][6] Ritter was a moderate figure within the Patriotic Union and often acted on realpolitik model.

[1] His son Karlheinz Ritter took over Ritter & Beck Rechtsanwälte upon his death and later served as the President of the Landtag of Liechtenstein from January 1970 to December 1973 and again from January 1978 to December 1992.

[8][10] Alois Ritter found his final resting place at the cemetery of Vaduz.