Key facts: Under Washington Statutory Probate Code, out-of-state heirs have identical inheritance rights to in-state beneficiaries. The $50,000 estate value threshold determines whether small estate affidavit procedures or formal probate administration applies. A mandatory 30-day waiting period follows probate initiation before distributions may occur. Non-resident heirs must designate an in-state agent for service of process or appear personally. Personal representatives must provide verified notice to all out-of-state beneficiaries through certified mail or equivalent delivery methods.