Quote from libnat
Nope, you could be totally on your own but if you are not several years older than I am now they will take family income only.
You can file an appeal with your school's financial aid office. If you can prove that you have livedon your own and have been working to pay your bills for an entire year, they will let you become independent status. But if you just try to csam them by living with a different relative and not working, then you're out of luck.
I had to appeal when I was younger because they tried to make me claim dependent status, even though I lived 400 miles away from my parents in another state and had worked my butt off to pay all my bills on my own. I won the appeal and was awarded more financial aid.