Undivided Interest - Title to property owned by two or more persons, none of whom are entitled to claim or possess any specific part.

Unilateral Contract - A contract whereby only one party is obligated to perform his obligation to another.

United States Government Survey System - A method of describing or locating real property by reference to the governmental survey; rectangular survey system.

Unmarketable Title - A title containing substantial defects which might cause a prospective purchaser to suffer title litigation and possible loss.

Upset Price - The minimum price at a foreclosure sale below which the property cannot be sold.

Usury - Charging a rate of interest on a loan greater than that permitted by law. It is presently 12% on personal loans.