I think your daughter should attend her state school, or any school that will be similarly priced (or lower). If she moves, she can become certified to teach in that state.
Keep in mind that some/many school districts will hire full time music teachers (especially when they can start at the lowest point on the pay scale), while others like to hire part time specials teachers (art, music, gym etc) to save on benefits. If your daughter can take a test (not sure how that works in other states) to teach RTI in addition to music, she will be more marketable.
I have been working in the public schools (northeast, not music) for 14 years.