“Again, that all takes real money, upfront, with no guarantee of winning.”
This is not about winning or losing. It is about legally administering the estate as the old man desired.
If one truly believes the unsigned will was made with a sound mind and reflected his desires accurately, that will should be submitted along with supporting evidence to the probate court.
Assuming both wills have the same executor and both sets of beneficiaries agree, that is possible.
If they don’t agree, SHTF. If the wills have different executors, SHTF.
Last minute wills of the old and infirm are always suspect in my book.
So are you going to answer osage oranges question in post 82 about whether you are a lawyer or not?