I was living with my grandmother in Louisiana, I didn't pay but but contributed to the grocery bills, I cut the grass and did maintenance around her house in lieu of rent. My aunt threw me out without warning and sold the house within the week. Can I sue for an illegal eviction?

Yes you may

I was living with my grandmother in Louisiana, I didn't pay but but contributed to the grocery bills, I cut the grass and did maintenance around her house in lieu of rent. My aunt threw me out without warning and sold the house within the week. Can I sue for an illegal eviction?

How did she throw you out? I am assuming she didn't literally pick you up and throw you.
Did she

lock you out,
call the cops,
demand that you leave, or
what?


Did you aunt also live with you and your grandmother before your grandmother died? Was the house titled jointly with your grandmother and your aunt?

LA is not a common law state so eviction, if that's what this was, may be different then the other 49.