Indiana Code Title 32. Property § 32-22-1-2

Sec. 2. (a) This section does not apply to any sale or contract made and entered into before September 19, 1881.

(b) In all sales of real estate by a person less than eighteen (18) years of age, the person may not disaffirm the sale without first restoring to the purchaser the consideration received in the sale, if the person falsely represented himself or herself to the purchaser to be at least eighteen (18) years of age and the purchaser acted in good faith, relied upon the person's representations in the sale, and had good cause to believe the person to be at least eighteen (18) years of age.