Thanks for all your feedback.  My sister and he has a living trust and
according to the laws in California this should take care of who gets what.
She is listed as beneficiary and her son if something happens to both of them.
Although, sometimes he doesn't think clearly, sometimes he does.  He knows
how much is in each bank, knows account numbers by heart, knows which banks
he does business with.  Sometimes I wonder if he does have Alzheimer's.
He wants to go back to his home state to buy his brother a house (his brother
just had a stroke and is in a nursing home)  But he feels, this way my sister
will not get "his" money.  She has worked all her life and he said the money
doesn't belong to her because she never saved any of it.  He was in charge of
making investments and saving money while she worked, worked and worked.
After he retired from the military, I don't think he worked as much as she
did.  She finally quit at 68 years old because he had a stroke and needed to
take care of him. He doesn't see that or understand it. But he understands
that he must send his sister money, just because.

Bri