Mo. Rev. Stat. § 425.300
Current with changes from the 2023 Legislative Session
Collection agencies may take assignment of claims in their own name as real parties in interest for the purpose of billing and collection and bringing suit in their own and the claimant's names thereon, provided that no suit authorized by this section may be instituted on behalf of a collection agency in any court unless the collection agency appears by a duly authorized and licensed attorney at law. Upon good cause being shown, a court may sever any actions brought under this section.
§ 425.300, RSMo