Wa state doesn't have income tax. When you write your taxes you'll just need to report your property tax payment. If you earn income in wa state yes you will need to report it. Since you're from ut you probably won't have an issue with the snow and winter Spokane gets.

I'd also suggest a video camera security system so you can watch your home from afar. I'd highly suggest multiple ring cameras. Amazon has a few drone cameras you can use inside as well. We use these to check our vaca homes now and then. The auto sensor future is awesome. Not so much as a cat gets past us.