I have a question that I hope can be answered. My mother is a green card holder and would like to file a green card for me. She does not have a job or any income. I am currently under an F1 visa which expires next June. I am also under my OPT and working for a company in Seattle. Can she still file an application for me without an income? She plans to use my sister who is an American citizen as joint sponsor on my application. What are my chances in this case? Should she still proceed to file for me or not? Thank you.