silenthill, she is lying to you.

She is dangling this in front of you to string you along.

If this man has left money to her----which I don't believe,
And if this man is dying-----which I also don't believe,
When it is discovered that he left a large amount of money to his therapist, this will be investigated.

So maybe the upside is that if you don't report her, she is going to be found out anyway.

The downside is that you are still working with a therapist who is abusive, settling for much much less than you deserve.