Legal analysis: advance notice registration refers to the agreement signed by the parties who buy or sell houses or other real estate rights. In order to ensure the realization of property rights in the future, they can apply to the registration authority for advance notice registration according to the agreement. For example, in the pre-sale of commercial housing, buyers can register the houses that have not yet been built in advance to restrict developers from selling or mortgaging the houses that have been sold again.

Legal basis: Article 490 of the Civil Code of People's Republic of China (PRC). If the parties enter into a contract in the form of a contract, the contract shall be 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.