As the issue of squatting comes under scrutiny following recent reports of clashes between homeowners and people unlawfully occupying their property, a map shows where the most squatting incidents have been documented in the U.S.Squatters are people who inhabit a piece of land or a building that they do not have a legal right to occupy, according to the American Apartment Owners Association. They live in the building or on the property without paying rent and without lawful documentation stating they own the property, are a law-abiding tenant or that...