Key facts: Maryland Statutory Probate Rules Code governs all sibling disputes; estates valued at $50,000 or less may qualify for simplified small estate procedures; a mandatory 30-day waiting period applies before certain probate actions can be completed; sibling contestants must demonstrate proper standing and financial interest; Maryland courts strongly encourage mediation before permitting probate litigation; strict statutes of limitations apply to will contests and other probate challenges; executor conduct can be challenged for breach of fiduciary duty; and sibling disputes can significantly impact estate administration timelines and costs.