I'm not sure what's going on here and how this family friend could not have a social security number. Also not sure how he could buy the home with existing debt such as rent and taxes.
This is why it's never wise to put your name on something for anyone else. If the family friend is still unable to take title, you're not going to be able to deed it to him.
In general if the home was bought in cash, there should be equity in it, and it seems if you needed to you could mortgage the home to get money to pay for the accrued debts.
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This is the very high risk that you run when you trust in someone who is not accountable or reliable. You cannot simply remove your name from a titled mobile home. You can sign the title over to him and have him record it or you can sell it to someone else. Hopefully, you did not sign the lot rental agreement because you'd be on the hook for that no matter what.
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