Legal analysis: If there is a notarized power of attorney signed by the client, the legal effect is the same as yours. If you don't entrust others to sign and fingerprint, it's not yours. This contract is invalid for you.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 469 The parties may conclude a contract in writing, orally or in other forms.

Written form refers to contracts, letters, telegrams, telexes, faxes and other forms that can tangibly express the contents contained.

A data message that can tangibly express its content through electronic data interchange, e-mail, etc. , and can be retrieved at any time, are considered in writing.

Article 470 The contents of a contract shall be agreed upon by the parties, and generally include the following clauses:

(1) The name and domicile of the party concerned;

(2) Subject matter;

(3) quantity;

(4) quality;

(5) Price or remuneration;

(6) Time limit, place and method of performance;

(7) Liability for breach of contract;

(8) Methods for resolving disputes.

The parties may conclude a contract by referring to the model texts of various contracts.

Article 471 The parties may conclude a contract by offer, acceptance or other means.