Key facts: Under M.G.L. c. 190B, § 3-703, executors must file a complete inventory within 3 months of appointment; M.G.L. c. 190B, § 3-1201 provides for voluntary administration of small estates meeting the $50,000 threshold; the 30-day waiting period ensures adequate notice to creditors before estate distribution; executors must publish notice to creditors in a local newspaper and provide direct written notice to known creditors; all estate debts, taxes, and expenses must be paid before distributing assets to beneficiaries.