How about
pushing for more public housing, exactly in the same way than healthcare ... ?
If not, well, it's easy: more taxes on non conventioned housing...
At least this is what we have here in France, being an owner is not THAT great believe me:
- Tenants have alot of personal problems, it's risky, except when you own arround 20+ homes so you can manage a balance. Really good with bank.
- The only thing we can hear here is "try in others countries where there's less tenants protection and taxes."
Beyond this: rent office buildings, much less problems