The United States Supreme Court case of The United States v. Francis P. Ferreira, Administrator of Francis Pass, Deceased involved a dispute over the ownership and title to certain lands in Florida that had been granted by Spain prior to its cession to the United States in 1819. The issue before the court was whether or not these grants were valid under Spanish law and if so, did they pass with the cession from Spain to the U.S.? After considering evidence presented by both parties on this matter, including testimony from witnesses who had knowledge of Spanish land laws at that time, it was determined that these grants were indeed valid under Spanish law and thus passed with cession from Spain to the U.S., making them legally binding upon all parties involved in this case as well as any future claimants for those lands.

In the United States v. Francis P. Ferreira, the Supreme Court was asked to decide whether a foreign-born individual who had resided in Massachusetts for several years prior to his death could be considered an inhabitant of that state and thus entitled to certain rights under its laws. The majority opinion held that he could not because he had never taken any steps towards becoming a citizen or naturalized resident of the United States, and therefore did not meet the definition of an inhabitant as defined by Massachusetts law at that time. However, Justice McLean dissented from this ruling on two grounds: firstly, he argued that there were no legal requirements preventing someone born abroad from being considered an inhabitant; secondly, even if such requirements existed they should have been waived in this case due to extenuating circumstances surrounding Mr Pass' residence in Massachusetts before his death. He concluded by stating that it would be unjust for Mr Pass' estate to suffer simply because he failed "to comply with technicalities".