I am a U.S. citizen and looking into helping my parents migrate to the US. Long story short, my parents do not live in the States; however, they have a 10-year ban on entry into the US. They left in 2013, making it exactly ten years this year (They left the US voluntarily). For me to petition them and give them a Green Card, can I apply for an I-130, or do I need to do something else before?