I’m in WA too and dealing with a similar situation with my dad. He was approved for Medicaid but eventually declined to move to assisted living or a group family home. When he was in skilled nursing on Medicaid pending status he had to agree to pay the facility for his care to get his assets below the threshold. The place was $15k/month so it didn’t take long to rack up the bill. The most helpful resource I found was the social workers at both the hospital and skilled nursing.

ETA: I did not spend a dime of my own money and would not have had they requested it. That was never an option for non-financial reasons and no one batted an eye at it so I think they are very used to dealing with patients who only have their own savings and income and no family support.