If the parties are entrusted by the client to sign the contract on behalf of the client, the act of signing the contract has legal effect.

People's Republic of China (PRC) Civil Code

Article 16 1; Scope of application of agency: Civil subjects can carry out civil legal acts through agents.

In accordance with the provisions of the law, the agreement of the parties or the nature of civil legal acts, civil legal acts that should be implemented by themselves shall not be represented.

Article 165; If the power of attorney entrusts an agent with written authorization, the power of attorney shall specify the name, entrusted matters, authority and time limit of the agent, and shall be signed or sealed by the principal.

Article 464; Definition of contract and legal application of identity relationship agreement A contract is an agreement between civil subjects to establish, change and terminate civil legal relationship.

Agreements on status relations such as marriage, adoption and guardianship shall be governed by legal provisions on such status relations; If there are no provisions, the provisions of this part can be applied according to their nature.

Second, the following principles must be followed in the process of concluding a contract.

1, principle of equality

The legal status of both parties to the contract is equal, that is to say, there is no relationship between obedience and obedience. Even if the two sides have unequal relations in other aspects (such as administrative relations), they must be in an equal position when concluding a contract.

2. Voluntary principle

The parties to a contract have the freedom to conclude and not conclude a contract, the freedom to choose the parties to the contract, the form and content of the contract, and the freedom to modify and terminate the contract. No natural person, legal person, other organization or even state organ with public power may illegally interfere.

3, the principle of fairness

In the process of conclusion, performance and interpretation of a contract, the rights and obligations between the parties to the contract should be adjusted with the concept of fairness.

4, the principle of good faith

In real estate activities, the parties should be honest and trustworthy to ensure that all parties can obtain their own interests, and at the same time, they should not harm the interests of third parties and society through their own actions.

5, the principle of legality

The contents of the contract should be legal.