Process to remove Squatters on Land in Snohomish County, Washington

[Jim Dreves]

Situation:  

Recently purchased a rural property @ Auction where the only structure had been destroyed in a fire and is uninhabitable.  The  property has no power, however I am not sure about water or septic. I have driven by the property and spoken with neighbors. There are active squatters, not sure who or how many, living in 2 RV's. 

At this time I don't know if they have permission to be there but from talking to the neighbors do not think so. It appears they've been there in excess of 4 months.

I understand that until I receive the Deed from the Trustee I am unable to take action - which may be up to 4 weeks. 

Question:

Other than cash for keys - what legal steps are there in Snohomish County/Washington since they are not in a house/structure?

Thanks.