Dent v. Ferguson was a United States Supreme Court case that dealt with the issue of whether a state could impose a tax on the transfer of real estate. The case was brought by the plaintiff, William Dent, who was a resident of the state of Missouri. Dent argued that the state's tax on the transfer of real estate was unconstitutional because it violated the Due Process Clause of the Fourteenth Amendment. The Supreme Court held that the tax was constitutional. The Court reasoned that the tax was a legitimate exercise of the state's power to tax and regulate the transfer of real estate. The Court also noted that the tax was not so onerous as to be oppressive or confiscatory. Furthermore, the Court held that the tax did not violate the Due Process Clause because it was not arbitrary or capricious. In conclusion, the Supreme Court held that the state of Missouri could impose a tax on the transfer of real estate without violating the Due Process Clause of the Fourteenth Amendment. The Court's decision established that states have the power to tax and regulate the transfer of real estate, so long as the tax is not so onerous as to be oppressive or confiscatory.

Justice Field delivered the dissenting opinion in Dent v. Ferguson, arguing that a state statute which allowed for the sale of mortgaged property without notice to the owner was unconstitutional and violated due process rights. He argued that such a law would be oppressive and unjust as it deprived individuals of their right to defend themselves against foreclosure proceedings, especially when they had no knowledge or opportunity to do so. Justice Field further argued that this type of legislation could lead to fraud and abuse by creditors who might take advantage of unsuspecting debtors who were unaware of their legal rights. He concluded his dissent by stating that due process requires fair notice before any action is taken against an individual's property interests, regardless if it is done through judicial or legislative means.