Key facts: Connecticut Probate Court has exclusive jurisdiction over sibling estate disputes; estates exceeding $50,000 require formal probate administration; a 30-day statutory waiting period applies before certain probate actions; objections to estate administration must be filed within prescribed timeframes; Connecticut recognizes will contests based on lack of testamentary capacity, undue influence, fraud, or improper execution; siblings bear the burden of proof in will contests by preponderance of evidence; fiduciary removal requires demonstrating breach of duty to beneficiaries.