This was 20 years ago, so I would double check. When I was applying for colleges, I could choose current state I was living in or state my dad was a residence of in order to receive in-state tuition. I ended up attending college in the current state and no issues with meeting residence status. The college was a former military college so totally possibly they could have had different requirements. Dad was still active duty and living in the same state while official residence was in another state.

Another path that’s much harder - I had friends that declared themselves independent. Paid first year of college as out of state and established residency that first year. Then years 2-4 were in state. It makes the loans much more difficult to obtain though.

UW financial or admissions officer can gear you to the right person to ask your questions.