Invalid.

According to the "Civil Procedure Law of the People's Republic of China", the execution letter showing the eviction of the house needs to be certified and signed by the president of the court and the persons present, otherwise it will be invalid. When the court compulsorily enforces the execution of a house, the person subject to execution shall move out within the time specified by the court. The court shall generally complete the execution within 6 months from the date of filing the case. If there are special circumstances that require an extension of the execution period, a report shall be made to the president of the court or the court. Approved by the Vice President.

Article 250 of the "Civil Procedure Law of the People's Republic of China" For forced eviction of a house or forced withdrawal of land, the president shall issue an announcement ordering the person subject to execution to perform within a designated period. If the person subject to execution fails to perform within the time limit, enforcement will be enforced by the execution officer.