436.480.  Death or incapacity of purchaser, transfer of rights and remedies, to whom. — Upon the death or legal incapacity of a purchaser, all rights and remedies granted to the purchaser under sections 436.400 to 436.520 shall be enforceable by and accrue to the benefit of the purchaser's legal representative or his or her estate, and all payments otherwise payable to the purchaser shall be paid to that person.