He is currently living with me for 2 months due to medical reasons.
His residence is out of state.
His doctors are out of state.
My siblings have cut me off because he has asked to stay with me and be cared for by me.
He is not coherent enough to make me power of attorney per his attorney.
I am his Health Care Agent per the FIVE WISHES documents which state they hold up in BOTH GA and SC states we are dealing with. They documents were notarized.
Is your dad agreeing that you need to become his Guardian?
Guardianship has it's problems and if you can avoid it it might be easier for everyone. Guardianship can also be expensive and it does require visits to court and detailed recordkeeping as far as expenses.
It might be possible that with the documents you have you might not need to become Guardian. (not sure if the 5 Wishes is detailed enough.) But it might be worth asking. But you need to at least discuss this with a lawyer.