This amount of money is probably well beyond small claims court. I'd suggest a single, quick meeting with an attorney, to find out how you can go after this "TA". The amount of money you mention may put this into a serious legal category. (IANAL, so I won't speculate about categories or names of crimes, etc.)
It is possible (maybe not probable, but *possible*) that a letter from an attorney will get her to take action that will at least make your family whole, even if it doesn't help others who may have been scammed.
And you all SHOULD file complaints with assorted regulatory agencies, including her state's Attorney General's office. There may be other victims, but the AG/etc., can't see a pattern if victims don't report.
Absolutely agree with the above!