Answer:
Squatters rights is a form of adverse possession in which the squatter does not hold title to any adjacent property. To make a claim of adverse possession, the squatter must occupy the property against the wishes of the owner, but not hide the fact that he is occupying the property.
The squatter must occupy the property continuously past the statute of limitations for eviction. If he is removed and then reoccupies, the clock on the statute resets. Also, the time cannot be passed (or 'tacked') on to another squatter.