"Real estate holding companies?" The broad majority of SF housing is one or two family dwellings. (I'd guess as much as 90% of the city.) They're mostly occupi

"Real estate holding companies?" The broad majority of SF housing is one or two family dwellings. (I'd guess as much as 90% of the city.) They're mostly occupied by owners, not rented, so the folks who benefit are the existing residents of the city who own their homes.