Hmm, so the choices are...
Acquiesce to his
demands requests, and feel financially secure while you beat the cancer and achieve your academic/professional goals.
Or, get a pitbull lawyer and stick to your plan, by making him stick to the agreement, and risking have everything blow up in your face.
Of course the first option, putting him back in control, may result in him pressuring you(or at least trying to), to give up your professional goals, preferring to have you safe at home away from bad influences... at least long enough to rearrange his finances. Even if he allowed you to continue, you'd have the stress of having failed to make the break you wanted, plus almost certain the stress you felt before you made the break.
The second option gives you the stress of fighting for what was previously supposed to be settled, and the possibility of not being physically strong enough to finish school/licensing. In other words, failure.
Looks like either way it won't be easy, so I guess it comes down to whether making the break was necessary, or just looked like a better option. How bad do you want it, what will you risk to try?
Well after all that thinking out loud (blovating) I wish I had some sage advice. But it looks to me like you're the only one that can make the decision.
