The family petition is the first step in an overall green card case. It's not the only step. Generally, a family petition proves that there is a relationship here in the United States for which you qualify to be able to remain or to live in the United States. REQUIREMENTS DEPEND ON RELATIONSHIP: The requirements of the family petition depend on the relationship - who is petitioning you. Parent-Child Petition: If your child is petitioning you and you are their parent, then you have to prove the r