This chapter proposes social capitalization as an approach for Latino/a parental involvement in schools to respond to policy decisions that significantly violate their educational rights in selecting the language of instruction for their children’s education. A multi-year ethnography is used to document the development of social capital in two specific areas: 1) the acquisition of political, economic, and cultural resources to overturn a local school board with an anti-bilingual agenda; and 2) the sociopolitical process to elect parents who represent parent-choice. The entire process included a powerful alliance of parents and teachers who collaboratively employed networks of community support, resources, and grassroots organizing to eventually become a majority on the school board. Two election cycles ultimately reinstated school policies that supported parents’ choices in program options for their children.