Tenants in the house we are buying (Washington state)

[Jennifer Soelberg]

This is probably a question for someone in Washington state as it has to do with landlord tenant laws, but we are in the middle of buying a property. There is an older couple living in it currently who are not paying rent and are not on a lease. They were kind of the caregivers of the renter who passed away 6 months ago. The owner is in California and hasn’t been managing it at all. We heard that there may be a law about the recently deceased and letting the people living there stay for a certain period of time after their death? Just wanted to see if anyone had dealt with someone similar? Any ideas on how to get them out? (There is no way they can pay the rent on their own)