Mo. Rev. Stat. § 442.560
Except as provided in sections 442.560 to 442.591, persons not citizens of the United States and not residents of the United States or of some territory, trusteeship, or protectorate of the United States, and corporations not created by or under the laws of the United States or of some state, territory, trusteeship, or protectorate of the United States shall be capable of acquiring, by grant, purchase, devise or descent, real estate except agricultural land as defined in section 442.566, or any interest therein, in this state, and of owning, holding, devising, or alienating the same, and shall incur the like duties and liabilities in relation thereto as if they were citizens of the United States and residents of this state. The provisions of sections 442.560 to 442.591 shall not apply to agricultural land located in counties which border the state of Oklahoma which was owned by such a person described in this section prior to January 1, 1995.
§ 442.560, RSMo