I am a mother of two. I don't live in Australia or have Australian citizenship, but I am married to an Australian citizen. He has a wife in Australia but they are separated (not living together). Our religion allows more than one wife. I would like to know is it possible for me and my kids to come and live in Australia? Please note that he is not the father of my kids. Can he adopt them? If so, will that help us in coming to Australia? Under what category we can get Australian visa? Thank you.