My brother who is seeking joint custody of his 8 mo old son and has never been married to the mother of his child, but the mother of his child has other children with different fathers had her children taken by CPS prior to her having my brothers son. My brother is wanting joint custody, however his wife is disabled and experiences occasional seizure once every three to four weeks. His wife is able to care for herself. Does my brother still have a good chance at joint custody?