Mo. Rev. Stat. § 407.880

In the event of the death of the retailer or the spouse of a surviving retailer if the retailer is operating as a tenancy by the entireties or the majority stockholder of a corporation operating as a retailer, the wholesaler, manufacturer or distributor shall, at the option of the surviving spouse or the heir or heirs, repurchase the inventory from the surviving spouse or the heir or heirs of the retailer or majority stockholder as if the wholesaler, manufacturer or distributor had terminated the contract. The surviving spouse or the heir or heirs shall have one year from the date of the death of the retailer or majority stockholder to exercise their options under sections 407.850 to 407.885. Nothing in sections 407.850 to 407.885 shall require the repurchase of any inventory if the surviving spouse or the heir or heirs and wholesaler, manufacturer or distributor enter into a new contract to operate the retail dealership.