How can I find out if I have been left anything by my mother in law who died on June 14th. Her son and I are separated

She died on June 14th this year. I am married to her son since May 2007. We emigrated to Australia in 2008. There is a domestic violence protection order in place against him and he is not allowed to contact me. I don't have contact with any other family members. I would like to know if she included me in her will. I hope you can help me.