The consequence is that even after buying a property and getting rid of a mortgage on the property, no one can live on such a property for free because there is a rent to be paid to the government — a property tax.
I came across an interesting article explaining the origin of property taxes:
Alana Semuels, “The Feudal Origins of America’s Most-Hated Tax,” The Atlantic, August 24, 2016.
Her source of information seems to be:
Jonathan R. T. Hughes, The Governmental Habit Redux: Economic Control from Colonial Times to the Present, 1991.