Yes, the house lease contract can be completed by proxy, but in order to avoid some disputes in the future, it is recommended that the client issue a power of attorney with an autograph and give a copy of his identity certificate. The client also needs to prepare the original identity card for inspection. If the signed lease contract has no explicit authorization, it is an invalid contract. Legal basis: Article 503 of the General Principles of Civil Law of People's Republic of China (PRC) does not authorize the agent to conclude the contract in the name of the principal, and if the principal has started to perform the contractual obligations or accepted the performance of the counterpart, it is regarded as ratification of the contract.