My fiance has full custody of her son, and her ex-husband has only supervised visits. he refuses to visit with the child with her there, so he has not seen his son in over two months. he's always on drugs and hasn't paid a dime for this child in over a year and a half. the child is now three years old and is calling me daddy because there is no one else there. is there anything we can do to take all rights from his true father? if this is done can child support still be gotten from him? And if he quit working to avoid having to pay child support, can anything be done?