Houseless guy living in my building’s lobby

Any other residents in my building (on 34th st) over Robert sleeping in our lobby/hallways every night?

Left for work today and he was passed out on the radiator in the lobby. Two days ago he was sleeping in the stairwell blocking the whole thing. He smokes in the building and leaves trash and half eaten food everywhere.

For those that don't know, he's the son of the super and is now houseless. He's a vet with mental issues after an accident. But he spends his day walking around yelling and talking to himself.

I feel bad for the guy, but we all pay way too much money to have to deal with this daily.