I don't know how nice this guy is, Tess, but I think that my response would be, "Not until I know you a LOT better!" And, I think that I might even give him hell for even asking such a question.
BUT THEN! Maybe he really needs help. Could you do that for him, without taking him into your home? It's a tough call and it all depends on how well you know him and trust him.
Live simply, love generously, care deeply, speak kindly.
Cowards are cruel, but the brave love mercy.
"The purpose of life is to contribute, in some way, to making things better" Robert F. Kennedy