it is no accident though, various private equity parasites have lobbied bribed various speculation-incentives into law over the decades that make it especially lucrative to be a rent seeking parasite....the "professional landlords" can even write lost rent off their taxes, that is...an apartment sits empty because noone can afford to live there (and who sets the rates...)? free $ off their tax bill
so they're actually financially incentived to leave to a couple units vacant with an exuberant rate they know noone can afford