I recently changed jobs. The clientele here is well, let's say, considerably better off financially than most people. Part of my job is to audit scanned documents and today I was going over some legal documents involving the death of a client.
It was all the usual stuff you'd expect when someone who has a large estate dies. And then I got to the affidavit where they tracked down the considerably younger female friend of the decedent, who then had to swear in a binding legal document as to details of the relationship, as well as acknowledge she had benefitted financially from the account/client. Oh yeah, and then they made her add to the document that she knew she would not further benefit or inherit anything from the estate.
This document was dated just 4 days after the client died. Oh, and there was also a very complete background check done on this female "friend."
There are no secrets. One way or another, it comes out. Count on it.