Key facts: Missouri small estate affidavit eligibility requires estate value of $50,000 or less; mandatory 30-day waiting period applies before affidavit can be utilized; affidavit must include sworn statement regarding estate value and claimant's relationship to decedent; assets can include bank accounts, insurance proceeds, and personal property; financial institutions may require certified death certificate with affidavit; joint tenancy and TOD designations provide additional probate avoidance mechanisms.