 In 1999 she had to fight the Chevron Richmond Refinery from lowering its property tax contributions and argue against the company insisting the city survive on a leaner budget.Corbin is still involved in local politics and campaigned against Indian casinos and in support of the failed Measure T.

Corbin studied at San Francisco State University for her BA and at University of California, Berkeley for her Master of library science degree.She serves as a docent at the Rosie the Riveter/WW II Home Front National Historical Park Rosie the Riveter/Homefront World War II National Historic Park a project she spearheaded as mayor.