Mo. Rev. Stat. § 426.170

The assignee shall appoint a day, within three months after the date of the assignment, and a place, which shall be the county seat of the county where the inventory is filed, or such other place in said county most convenient to all the parties in interest, where any court of record may be lawfully held, when and where he will proceed publicly to adjust and allow demands against the estate and effects of the assignor.