Does unoccupied cosigner for mortgage loan affect eligibility?

Does unoccupied cosigner for mortgage loan affect eligibility?

I was asked to help cosign for a fha loan. I don't pay anything nor live in it. I currently rent & have medicaid.

I was told it won't affect me since I'm allowed one home & promised to remove me within 6 months. Is that true? If it's not my primary residence, will I still qualify to keep medicaid? I have a feeling someone is uninformed or withholding information.