I'm sorry to hear it's come to that, expected as it was.

Does he qualify for ss at all? Something is better than nothing. How old is he?

It doesn't sound like there is much you can do.

When I hear people say, it's only money, or act like people are money grubbing and coarse because they pay attention to money, I think of stories like this, of your mil working so hard and leaving money for her kids, and then this happening.

Such a deep disrespect for someone else's life energy, and for his own, too.