Homeowners associations (HOAs) are nonprofit organizations of property owners in a residential subdivision. One of their major purposes is to manage property that benefits a group of homeowners; for example, a common lawn that all of them are welcome to use for picnics and so on. Someone has to mow the lawn and perform other upkeep on that communal property. The expenses of doing so are paid for by dues. The requirement to belong to the HOA and abide by its rules is often written into the property deeds. Homeowners associations were criticized for their strict regulations in Spencer Heath MacCallum's The Case for Land Lease versus Subdivision. As a solution, he proposed renting property rather than buying it.