Mostly the efforts are aimed at providing tax breaks to first time homeowners only. There’s not a lot of legislative thought put toward breaking up a corporate monopoly/oligopoly of rentals, likely because (and I hate the cynical and conspiratorial thought, but really?) the aristocracy owning the REITs are the ones paying off, owning, and running for congress. Us poors can’t afford it. A token legislative effort goes toward it now and then, but it has no real effect.