Damages incurred by the seller or lessor means actual damages resulting from the default or breach, as determined by the law of the jurisdiction governing the contract. However, no damages may be specified in the contract or agreement, except a liquidated damages clause not exceeding 15 percent of the purchase price of the lot, excluding any interest owed.
Purchase price means the cash sales price of the lot shown on the contract.
12 C.F.R. § 1011.4