So I'm wondering how folks who have residency in SD and Full-Time pull that off? I'm guessing they aren't really spending 6 months out of the year there? I know for most states I've lived in that's where the cutoff begins.
As for selling the house, we don't stand to make $500K so we shouldn't have any capital gains taxes.
Alas, I just checked and the State income tax in AZ is effectively half of OR currently. Might just be a smarter idea to establish residency down there. I just need to check and see how much vehicle registration and such might cost.