[1] In 1958, he joined his father's law firm Ritter & Beck Rechtsanwälte in which he took over upon his death on 31 January 1966.

[1][2] From 1966 to February 1993 Ritter served in the Landtag of Liechtenstein becoming the President of the Landtag of Liechtenstein twice from January 1970 to December 1973 and again from January 1978 to December 1992.

[1] Ritter married Erika Kranz (1926–2014) on 24 November 1951 and they had four children together.

[1] Ritter died on 18 July 2008 in Vaduz at the age of 79.

[1] His daughter Cornelia is currently a co-owner of law his firm, taking it over after his death.