My husband has 2 sisters, one married and one single (never married. no kids). The single sister inheirited approx $200,000 when their widowed mother died. Now this sister has some health issues, obesity,diabetes and high blood pressure. she refuses to diet or take medication. So I think it's likely she'll be the first sibling to pass away. Since she has no living parents or spouse and never had children, to whom would her estate go? Her two siblings? I don't know if she ever made a will, but I pretty much doubt it. She does have four nieces and nephews.? Would they inheirit? Is there a formula or general rule ? Just general questions. Hope I don't come off sounding greedy. Just wondering.