The parent you’re replying too has no problem with tenant-friendly laws: rather, these occupation limits are both tenant and owner unfriendly, because you can’t live together in non-family arrangements that you might prefer (as a tenant or as owner). I sympathize.

With regards to your example, if you’re rich enough to be able to afford leaving a property you own empty, then I have little sympathy. It seems like their cities and states should introduce a sizeable vacancy tax. Or, as they did in Amsterdam in the 1980ies, tolerate squatting. And yes, maybe see if there’s something that can be done about backlogs in eviction court, but the baseline for me is that it should never be feasible for an owner to leave their house empty.