
A Disseisor is the party in a case of adverse possession who has taken actual possession of the property, thus `dis-seizing` (dispossessing) the true owner. A Disseisee, the correlative, is the party put out of an estate, unlawfully. ...
Found on
http://en.wikipedia.org/wiki/Disseisor

One who puts another out of the possession of his lands wrongfully.
Found on
http://www.lectlaw.com/def/d181.htm
No exact match found.