In case law, other types of estate planning or property-related instruments not explicitly mentioned (e.g., beneficiary designation, contract, deed, guardianship, intestate succession, power of attorney, quiet title, trust, or will) may include mechanisms like life estates, joint tenancies, revocable transfer on death deeds, prenuptial agreements, or estate contracts. These instruments serve various purposes, such as transferring property, managing assets during life, or resolving ownership disputes, and are governed by specific jurisdictional statutes and case law. For example, In re Estate of Hatten (1993) addressed joint tenancy with right of survivorship, clarifying automatic property transfer upon death, while Babbitt v. Youpee (1997) examined constraints on certain property transfers under federal law. The validity, execution, and interpretation of these instruments depend on compliance with legal formalities, clear intent, and jurisdictional rules, often requiring judicial scrutiny in disputes over enforceability or intent. For precise application, consult relevant statutes and case law in the governing jurisdiction.