What are the rules for claiming non-relative live in caregiver?

You cannot claim this person as a dependent. Get a tax prep person.

It would be best to consult a CPA or a person who prepared income tax, as to whether you can claim a non-paid employee as a Dependent.   The non-paid employee has to be a U.S. citizen.

Curious why this person isn't getting paid so he/she can prepare themselves for their own retirement?