You can also live off post.
Answer .
Yes, sometimes they can and you will have to ask your Superior about this. However, I do suggest you have her come on base so she can see where she will be...
As my personal i think you should only if they agree and only if they both like you. If you think that you will interfere don't. If you like the fiance then you shouldn't so you don't interfere
Yes if you have parental consent, if you dont have your parents behind you you can go get an amancipation from the courts, but you have to prove you can make it with your fiance.