Petition for Probate of Lost Will 20 days notice to all heirs, beneficiaries, and transferees (including a copy of proposed lost Will). RCW 11.20.070(1) &11.96A.110
Petition for Letters Testamentary If filed within 40 days of Decedent’s date of death + estate contains community property, then 10 days (?) notice to be sent to surviving spouse (technically, “as the Court may determine”).  But see KCLR 98.04(b) requiring 14 day notice. RCW 11.28.131
Petition for Letters of Administration (either general or with Will Annexed) 10 days notice to be sent to surviving spouse.  But see KCLR 98.04(b) requiring 14 day notice. RCW 11.28.030
Petition for Nonintervention Powers Notice required only if qualification is under “catch all” provision (ie, “not a creditor” & “in best interests”), then 10 days notice in statutorily required form to be sent to all heirs and beneficiaries.  But see KCLR 98.04(b) requiring 14 day notice. RCW 11.68.041(3)
Petition for Determination re Nonintervention Powers Upon Estate Insolvency Petition to be filed within 10 days of becoming aware that estate appears to be insolvent & 20 days notice to be sent to all all takers and unpaid creditors. RCW 11.68.080(2) & 11.96A.110
Petition for Order re Reasonable Review to Ascertain Decedent’s Creditors 20 days:
Notice to be sent to all heirs, beneficiaries, and possible creditors, &
Publication to be made in legal newspaper
RCW 11.40.040(3) & 11.96A.110
Petition for Order Allowing Creditor’s Claim of Personal Representative 20 days notice to be sent to all heirs and beneficiaries. RCW 11.40.140 & 11.96A.110
Petition for Status Report Petition may be filed by qualified taker after anniversary of PR’s appointment & heard after 20 days notice to any heir or beneficiary who has not received full distribution. RCW 11.68.065 & 11.96A.110
Request for Special Notice After filing & serving a Request for Special Notice, party is entitled to 10 days notice by mail or 5 days notice by personal service before hearing on any matter described in RCW 11.28.240.  But see KCLR 98.04(b) requiring 14 day notice. RCW 11.28.240