The housing crisis will never end without levying forceful taxes against real estate speculators and investors. A recent report outlines the necessary actions to impose taxes that can actually narrow the wealth gap and alleviate the housing emergency.
Then why not check on it occasionally and put a hefty fine on it when they fake the documents? If you cannot make a new and important law because rich people will try to bypass it than the state is useless.
There definitetly should be a better method. An honour system by mailing and online affirmation of occupied unit is useless.
You’d have to have someone go door-to-door at random intervals for an absolute check, I think, but that isn’t a bad thing provided that the people doing it are paid a reasonable wage.