Key facts: Standing requires legally recognized interest in estate as heir, beneficiary, or creditor; Grounds include lack of testamentary capacity, undue influence, fraud, duress, and improper execution; Delaware Code Title 12 governs all probate proceedings and will contests; 30-day mandatory waiting period after will admission before distribution; $50,000 threshold determines small estate simplified procedures; Contestant bears burden of proof by preponderance of evidence; Petition filed with Register of Wills in county of decedent's residence; Discovery may include witness depositions, medical records, and expert testimony.