We have that here. A person I know who owns apt buildings said one family is on the lease and something like 15 people move in
Back in 2007, just before the crash, we were selling homes to first-time buyers with no money down under an FHA program. The new owner would move in multiple people, never make a payment. It would take 2+ years for the bank to get around to foreclosing, so they got two free years of living. They would get utility assistance also, and food stamps. The living was good.