Well, in my opinion a family that holds your college education over your head as a means to gain control over your life once you legally can do what you want, is no family.
They're fu*king psycopaths in my opinion. This sounds like one of those things where after she graduates from college, they can fu*k off. I really don't know how to help you man
Congrats Spitfire, you offically have the Technodrome title for worst future in-laws. I have an idea, but where are they from anyway?