> Naively, any rent is more than zero rent, so why let a unit sit empty? There's a substantial cost in having a renter living there, both in dollars and risk.

> Naively, any rent is more than zero rent, so why let a unit sit empty? There's a substantial cost in having a renter living there, both in dollars and risk. So if the rent isn't enough to cover those, it's cheaper to let it sit unused.