It's almost impossible for out of state students to "get residency" and pay in state tuition rates. This is due to most states setting the age of majority for tuition classification only, to 25. Age of majority for voting and dying in wars is 18. Age of majority for drinking alcohol is 21. But tuition? Nah, you don't get that until you're 25, even if you're a resident of that state. So in effect, you only get the in state tuition for the state either of your parents live in.