The Issue: Among all the Courts that have legal authority, and given the particular facts and circumstances of this case, what is the location of the Court that is the most appropriate to hear and decide it? Venue is discretionary, meaning that so long as the Court has jurisdiction, it can agree to hear a case although it lacks venue. See Venue Technicalities.
RCW 11.96A.050 provides that the proper venue (ie, location) for the probating of Wills and administering of Descendant’s estates is:
Bottom-line: The proper Court for a Washington resident is the Superior Court in the county in which the Descendant resided at death.