Legal analysis: if authorized by the parties to the contract, the agency signing has legal effect. If the lease contract is signed without the authorization of the parties, it cannot be signed on behalf of the parties, because the contract is a binding clause signed between the parties and the other party. If it is signed on behalf of the parties without a power of attorney, such a contract can be legally deemed invalid, and attention must be paid to the truthfulness and validity of the contract when signing the contract.

Legal basis: Article 465 of the Civil Code. Contracts established according to law are protected by law. A legally established contract is legally binding only on the parties, except as otherwise provided by law.

Article 490 of the Civil Code If the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.