Expert help with FAFSA Plz!!!?

If your parents have no information, then you can't use theirs. Lol. I'd say that you'd put your brother as your guardian, since he lives with you. Then just use his information. However, when you decide what college(s) you will be sending the FAFSA report to, let them know all this information about your living situation; it'll help them understand, and they even may be more lenient in letting you pay for tuition, etc. Maybe they'll decrease your costs, even. You never know!!!