Hi there, I have some general questions in regards to family inheritance. The background scenario is: My parents have 4 children, and we believe my sister married to a total loser with gambling habit leaving debts everywhere. Their relationship itself is in question (he was an illegal immigrant, and parents believe my sister was "forced" to sign the marriage certificate in detention centre). Basically our parents wish to exclude her from the inheritance so the husband cannot benefit from it. Another thing is my sister herself is not mentally capable to handle this situation. She is 42 YO but has the mental capacity like a kid. I am representing my parents looking for some generic information for now to give us some base understand of the family law in Australia before we see a lawyer for a proper consultation. 1. By default without any will how the deceased assets are distributed? 2. Do my parents have default right to exclude my sister out of the inheritance in their will? and can she or her husband contest the will? 4. Will divorce between my sister and her husband automatically exclude her husband from benefiting the inheritance? What happen if they re-marry after my sister receives inheritance ? will the husband has legal access to the inheritance? 5. If my sister (& husband) decides to contest the will, is it through that the cost of the legal proceeding is taken from the inheritance fund itself? 6. Do other siblings have the rights to defend our parents' will? Much appreciated if you can assist, as we have no idea at all about family law, and some of the questions might be obvious. Thanks guys!