Mo. Rev. Stat. § 426.070
The assignor, his agent or attorney, at the time of the execution of the deed of assignment, shall make a statement, in writing, verified by affidavit, setting forth the general nature and full value of the estate and effects assigned, which statement shall be filed with the deed of assignment for record; and the assignee shall, within three days after the filing of such deed and statement, give bond with at least two good and sufficient securities, to be approved by the court or judge, or clerk thereof in vacation, in double the amount of the estate and effects assigned, and if the appraised value of such estate and effects, when appraised, shall be greater than the value given in such statement, or if the securities in such bond should in any way become impaired or insufficient, the assignee shall, at the time of filing the appraisement, give another bond with at least two good and sufficient securities, to be approved by the court or judge, or the clerk thereof in vacation, in double the amount of the appraised value of the estate and effects assigned.
§ 426.070, RSMo