I understand now the definition by Georgia law. My question is my boyfriend and I care for his ex wifes 14 year old special needs son. She does not visit with him nor does she provide any monetary support. They have 2 children together that my boyfriend does have custody of, she sees them everyday. When she gets angry she threatens us by saying she will take the 14 year old away and we will never see him again. What can we do, my boyfriend is not his biological father (biological father has not seen child in 12 years) but he wants custody of the child. Can we file something to obtain custody of this child weove and care for?