This case involved a dispute between Shelby and Guy over the ownership of land in Tennessee. The Supreme Court was asked to decide whether or not Shelby had acquired title to the property through adverse possession, which is when someone takes control of another person's land without permission for an extended period of time. In its decision, the court held that although Shelby had been in possession of the land for more than twenty years, he did not have legal title because his occupation was inconsistent with what would be necessary to establish such a claim. Furthermore, it found that Guy still retained legal title since he had never abandoned his right to possess it. Ultimately, this ruling established that mere physical occupancy alone does not confer legal title on one’s property; rather there must also be evidence demonstrating intent and exclusive use by one party in order for adverse possession laws to apply.

In Shelby and Others, Executors of Shelby v. Guy, the Supreme Court was tasked with determining whether a state court had jurisdiction to hear a case involving land located in another state. The majority opinion held that it did not have such authority; however, Justice Johnson wrote a dissenting opinion arguing that the Constitution does not prohibit states from exercising jurisdiction over cases involving lands outside their boundaries. He argued that since there is no express prohibition against this type of action in either the Constitution or any federal statute, then it should be allowed as long as both parties agree to submit themselves to its jurisdiction. Furthermore, he argued that if one party refuses consent then they can still bring suit in federal court for relief under diversity of citizenship rules which would allow them access to justice even though they are unable to obtain it through their own state courts. Ultimately Justice Johnson concluded by stating his belief that allowing states some degree of extraterritorial power would help ensure fairness and equity among all citizens regardless of where they reside or what kind of property dispute may arise between them.