<p>My understanding is this:
If you are classified as a dependent on your dad’s tax return, then his state of residency is yours too, regardless of where you are going to school.
From what you described, I guess that your dad lives in VA so I assume that he is a VA resident paying VA taxes, then you should be classified as a VA resident too. Please check with the school but I am pretty sure that this is correct. Hope it helps.</p>