1. Article IV Section 1. Full faith and credit shall be given in each state to the public acts, records, and judicial proceedings of every other state. And the Congress may by general laws prescribe the manner in which such acts, records, and proceedings shall be proved, and the effect thereof.

2. 28 U.S.C. § 1738 The Acts of the legislature of any State, Territory, or Possession of the United States, or copies thereof, shall be authenticated by affixing the seal of such State, Territory or Possession thereto. The records and judicial proceedings of any court of any such State, Territory or Possession, or copies thereof, shall be proved or admitted in other courts within the United States and its Territories and Possessions by the attestation of the clerk and seal of the court annexed, if a seal exists, together with a certificate of a judge of the court that the said attestation is in proper form. Such Acts, records and judicial proceedings or copies thereof, so authenticated, shall have the same full faith and credit in every court within the United States and its Territories and Possessions as they have by law or usage in the courts of such State, Territory or Possession from which they are taken.

3. Yarborough v Yarborough (US 1933)

4. Stone, J., dissenting “For present purposes, we may take it that the Georgia decree, as the statutes and decisions of the state declare, is unalterable, and, as pronounced, is effective to govern the rights of the parties in Georgia. But there is nothing the decree itself or in the history of the proceedings which led to it to suggest that it was rendered with any purpose or intent to regulate or control the relationship of parent and child, or the duties which flow from it, in places outside the State of Georgia where they might later come to reside.”

5. “It would be going further than this Court has been willing to go in any decision to say that the power of a state to pass judgment upon the sanity of its own citizen could be foreclosed by an earlier judgment of the court of some other state dealing with the same subject matter.”

6. “Parties who have in one state litigated the proper construction of a will disposing of realty are not, by the judgment there, concluded in another state where the testator's realty is located. Nor will a divorce decree seeking to apportion the rights of the parties to realty be conclusive with respect to land outside the state. The interest of a state in controlling all the legal incidents of real property located within its boundaries is deemed so complete and so vital to the exercise of its sovereign powers of government within its own territory as to exclude any control over them by the statutes or judgments of other states.”

7. “More than once, this Court has approved the doctrine that a state need give no effect to judgments for conviction of crime or for penalties procured in a sister state.”

8. Georgia has mutuality requirement for issue preclusion Alabama does not P sues D in Georgia state court D is found negligent P2 sues D in Alabama state court concerning same accident May P2 issue preclude D from relitigating his negligence?

9. Durfee v Duke (US 1963)

10. Kalb v Feuerstein (US 1940) State ct took jurisd over a foreclosure proceeding – as a result farmer lost farm State judgment not given FF&C because at the time a bankruptcy action was pending, which deprived state ct of jurisd State court was unaware of bankruptcy action as dictum SCt said that even if state ct found that it had jurisd over an action despite bankruptcy, the judgment could be ignored

11. Clarke v. Clarke (US 1900)

12. “This is but to contend that what cannot be done directly can be accomplished by indirection, and that the fundamental principle which gives to a sovereignty an exclusive jurisdiction over the land within its borders is in legal effect dependent upon the nonexistence of a decree of a court of another sovereignty determining the status of such land. Manifestly, however, an authority cannot be said to be exclusive, or even to exist at all, where its exercise may be thus frustrated at any time.”