(2) If the seller of a unit of land that was not lawfully established is a county that involuntarily acquired the unit of land by means of foreclosure under ORS chapter 312 of delinquent tax liens, the person who purchases the unit of land is not entitled to damages or equitable relief. [1983 c.718 §4; 1995 c.618 §53; 1997 c.805 §2; 2007 c.866 §5]