Squatters are defined as individuals who illegally occupy a property without compensation and without documentation. It is becoming more common and, unfortunately, in many situations, dangerous. In a housing cooperative, squatting can occur under a couple of different scenarios. The first is they start off as an invited guest of a Member and then they just never leave thereby establishing legal residence. Legal residence occurs when the law recognizes your use of a particular address as your home where you receive mail. This is generally a 30-day window and is generally dealt with effectively through the use of appropriately drafted guest policies and enforcement of your governing documents. Typically, you want a registration process for planned stays that are longer than a week and shorter than a month. This assures the Cooperative that occupants are authorized occupants and visitors are just visitors.