At least one of the charter schools in one of the smaller MN cities had to build an apartment complex next door to attract teachers. AFAIK, the apartments are reserved just for teachers and their immediate families. The charter school salary and benefits are crappy enough that without cheap (and good) housing, no one wants to move there to have a teaching career. I found out recently that this strategy has been given the rather euphemistic name "workforce housing". IOW, they have to build housing as a sort of charity project.