I don't really understand any immigration laws what-so-ever, sorry i don't use the correct terms.
Here's my problem:
My mother came to the US a few months into her pregnancy (with me in her belly) back in 1991, her Visa (not sure what kind) allowed her to stay for a total of 6 months, but late into her pregnancy she couldn't get on a plane and decided to conceive me in the US. Her friend who said he went to extend her stay lied to her and never really did, so later when i was born i stayed in the US for a year with my grandmother and my mother went home without ever realizing her overstay or ever getting a notice or going to court. And a few years ago she applied for a new visa to come to the US to visit me and was denied on the bases of overstaying back in 1991 without notice.
I looked it up and in order for me to petition a green card for my mother i would have to be 21 or older and from looking around a ban from the US would be at most 10 years, so, help?

