Many libertarians overlook the fact that a landlord is a government.
In addition, some landlords have their own security guards to defend their territory, just as city and state levels of government have their own police, or a national level of government has its own military. Some landlords also have their own arbitration process, just as other levels of government have their own court systems. Libertarians in the classical libertarian tradition, such as Thomas Jefferson, Thomas Paine, John Stuart Mill, Albert Jay Nock, Frank Chodorov, and various others, recognized that liberty requires limiting the power of landlords, just as it requires limiting the power of government at all levels. There need to be limits on the power of the landlord level of government, as well as limits on the power of government at all other levels of government. The problem with the landlord level of government is not whether some landowners' titles are based on land that was stolen from someone in the past.