INstate tuition for daughter in a unique situation...

Alabama establishes in/out of state at the time of admission. It is difficult to change it later (you have to provide evidence that the move is genuine, permanent & unrelated to attending university).

Relevant info from the UA website (https://registrar.ua.edu/academics-policies/residency-for-tuition-purposes/):

Long story short, although your specific reasons may be unique, most state universities have similar provisions to ensure that students don’t venue shop.