My grandmother passed and my father(her son) preceded her in death. He was named as a beneficiary in her will, along with my aunt. From what I understand the Anti lapse statute says that the portion of the estate that was willed to my father now goes to his children( me and my two siblings). However my aunt has started distributing some of our assets to others before the will has been filed and probated. My siblings and I fear that she is trying to contest the will so that we do not get our father's share. Is she able to do so, and how much time do we have in preventing her from doing so??