SliK wrote:They aren't necissarily next of kins though, what rights do a brother and sister really have? They might have ex spouses or children from those spouses that would have more right to their estate than a brother or sister that weren't recognized as husband and wife.
I don't really know how it works, I can't imagine an ex-spouse having that much more power over a sibling though, especially if they made it known in writing that they wanted the sibling to receive the estate.