Call a lawyer.
We’ve already got the lawyer lined up. I’m not looking for legal advice; I’m simply asking some general questions about some unique circumstances in this case.
Obviously, some local lawyer will have to be consulted, but a little background info or even anecdotal experiences is a good way to formulate questions and try to get your head around an issue.
When I taught people to do research, I told students that the best way to get started with a subject they knew nothing about was to go to the children's non fiction section of a library. That doesn't mean you *end* there!