He has been living with my husband and I for about a year, but doesn't want to pay for caregivers and his manipulation is becoming too draining on us. When I talk about going to a nursing home, he threatens to move back to another state. Can Social Services come in and analyze his physical condition?
Good luck, this sounds very frustrating. But you should not have to continue with a manipulative, selfish senior ruining your home life and affecting your health. Let us know how it goes.
I think if you call his bluff and tell him ok it's time for you to move out whether it be to another state or not, but make it clear that you won't be helping him, he may come to the realization that he can't handle a move and be more willing to either pay for full-time care or even to move into an assisted living facility nearby.
It's your home, you get to call the shots. Don't forget that.
If he can handle a move, if he's not incompetent (whether you have POA or not) you have to lay down the law. He either hires caregivers as his contribution to your household or he leaves. If he goes back to his former state you can have APS and whoever else do occasional wellness check and evaluation but not much else. People are free to make poor decisions until they're bad enough to be judged legally incompetent.