Missouri Revised Statutes Title XXIX. Ownership and Conveyance of Property § 448.1-112. Unconscionable agreement or term of contract

(1) The commercial setting of the negotiations;

(2) Whether a party has knowingly taken advantage of the inability of the other party to reasonably protect his interests by reason of physical or mental infirmity, illiteracy, or inability to understand the language of the agreement or similar factors;

(3) The effect and purpose of the contract or clause; and

(4) If a sale, any gross disparity, at the time of contracting, between the amount charged for the real estate and the value of the real estate measured by the price at which similar real estate was readily obtainable in similar transactions, but a disparity between the contract price and the value of the real estate measured by the price at which similar real estate was readily obtainable in similar transactions does not, of itself, render the contract unconscionable.