My boyfriend of four years has two young children. He has been caring for them since day 1. He is their only support system. Their mother died about a year ago in a car accident, but even before that he had full custody of them. They live in his home, he works every day to provide for them and myself. He wants to become a legal resident but he also doesn't want to have to leave his children for the time it takes for the application process to be complete or uproot them from their surroundings. He wants to do it right but fears he will be taken from his children and they won't be sufficiently cared for. Help!