The Marcus Brown Holding Company, Inc. v. Feldman et al., 1920 case revolved around a dispute over the ownership of certain properties in New York City. The Marcus Brown Holding Company claimed that they had purchased these properties from the defendants, who were acting as trustees for an estate. However, the defendants argued that they had never sold or transferred any such property to the plaintiff and thus still retained ownership rights to it. The Supreme Court ruled in favor of Feldman et al., stating that there was no evidence proving a sale or transfer of property rights from them to Marcus Brown Holding Company. Therefore, according to law and equity principles, Feldman et al remained rightful owners of said properties. This case is significant because it highlights how crucial clear documentation and proof are when dealing with real estate transactions; without them one may not be able to assert their claim on a particular piece of land or building successfully.

The dissenting opinion in the case of Marcus Brown Holding Company, Inc., v. Feldman et al., 1920, argued that the majority's decision to uphold a state law prohibiting corporations from owning farmland was unconstitutional. The dissenting justices believed this law violated the Fourteenth Amendment’s Equal Protection Clause by unfairly discriminating against corporations. They contended that there was no rational basis for treating corporations differently from individuals when it came to land ownership rights and suggested that such laws could have harmful economic consequences by discouraging investment in agriculture. Furthermore, they disagreed with the majority's view that states had broad powers to regulate corporate behavior under their police powers, arguing instead for a more limited interpretation of these powers consistent with principles of free enterprise and property rights.