An unsigned filing or an electronic filing without the required certification shall be stricken unless the omission is corrected promptly after being called to the attention of the attorney or party filing same.
An attorney appears in a case by:
An attorney may withdraw when the matter is completed or with leave of court. An attorney who has filed an entry of limited appearance withdraws when the attorney has fulfilled the duties set forth in the entry of limited appearance and has filed a withdrawal memorandum titled “Termination of Limited Appearance” that states that the attorney has fulfilled such duties.
Withdrawal memoranda, motions to withdraw, and notices of Termination of Limited Appearance shall include the client’s last known address and shall be served on the client in addition to all others required to be served.
Mo. R. Civ. P. 55.03