noun
unlawful occupant; squatter
Rare legal term for someone who occupies a property without legal right. More commonly expressed as 不法占拠者.
See also: 不法占拠者
そのアパートには不法入居者が住み着いていた。
An unlawful occupant had taken up residence in that apartment.
More common term for a squatter or unlawful occupant.
Compound of 不法 (unlawful) + 入居 (moving in) + 者 (person).