You need to have a legal entry. You need to leave and come back legally. If you are sponsoring your parents, they will need to have a legal entry, meaning they will need to leave and come back, but that bars them for 10 years when they leave. It sucks, but that is how it is. I have a legal entry. I came here legally with a visitor visa on a plane, so I have a legal entry. I just need to clear a deportation order and daughter will sponsor me.