Surprised they paid you anything. They didn't have to do so.

It is too late to pursue this, alive or dead.

Attorneys frequently copy and paste. Saves you, the client, a lot of money. Don't sign forms that are incomplete or incorrect. Raise your concerns...

It's your mom's money, not your money.

Absolutely nothing from a legal standpoint.............

You lay out a set of facts, and then ask if you can sue. Not at all clear for what. I see no grounds for a lawsuit.

Can you sue? Yes. Will you win? Maybe Do you have any damages to recover? Not IMO In other words, likely not worth the cost of a lawsuit.

Of course they can. They set rules. He is going to break them. He will pay the price.

Nothing at all unusual. Your lawyer can tell you why.

Try contacting a PI....................................................