[billybarue]

fiduciary duty and breach will probably be a separate action post death of your Gma in regard to the parties responsibilities (is your aunt the executor of the estate?).

I am no lawyer, but I think the how the Will assigned assets can be assailed on two basis: 1) Lack of mental competence on the part of your Gma; 2) undue influence of your Aunt in regard to the Will and giving of assets.

Sad to say, but I think "trading good money for bad" is the best advice you have been given. Get lawyers/judges involved and everybody gets a "haircut". How much of a trim you can stand is the question. from my experience I have little to no faith in the legal system.