Dennis was already working for the Fresno Public Defender doing trials while in law school. Admitted in 1977, he formally became a Deputy Public Defender. In 1980, he moved to Tulare to join what is now Mederos, Soares, Ormonde & Rascon. His broad general practice initially included a lot of criminal trial defense, but has transitioned to transactional work and estate planning. Dennis has always been actively involved in the Tulare community including being Legal Counsel for the Tulare Chamber of Commerce and serving as President of the Tulare County Bar. Then he took the big step and ran for Tulare City Council, won in November 2018, and was immediately chosen by the Council as Vice Mayor.