§ 32-17-12-1

A contract for valid consideration:(1) to sell any interest, real or supposed, in any land belonging to the United States;(2) for the occupancy of land belonging to the United States; or(3) for any improvement made on land belonging to the United States;may not be voided by either party or the party's heirs, executors, administrators, or assigns if the nature and extent of the interest were, at the time of contract, known to the party, and the party's consent to the interest was obtained without fraud, conspiracy, or misrepresentation.[Pre-2002 Recodification Citation: 32-1-11-1.]As added by P.L.2-2002, SEC.2.