If an appearance has been entered through FRAUD or mistake or after the plaintiff's complaint has been materially amended, the discretion of the court may permit the appearance to be withdrawn. A proper withdrawal is treated as if no appearance at all had been entered in the case. A defendant who has withdrawn a general appearance may ask the court for leave to file a special appearance to challenge the court's jurisdiction.
If someone makes an unauthorized appearance on behalf of the defendant, it may be stricken or set aside by a motion of any party with an interest in the proceeding.
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