1,no. Because there is no qualification to buy a house, even if the online signing is successful, it will have no effect. The house bought by the property buyers finally realizes legal existence, and it has to go through two processes: online signing and filing. Online signing is a networked management system established by real estate management departments to regulate the sale of houses by real estate enterprises and prevent development enterprises from selling more houses in property hoarding.

2. Signing a house online is equivalent to filing a sales contract with the real estate management unit and making an announcement on Internet technology. After the online signing, you will also get an online signing number, and you can search the information content of the online signing on the Internet technology.

3. The house that has been signed online cannot be signed online for the second time, which helps to prevent real estate developers from selling one room and two rooms to a certain extent, which belongs to administrative personal behavior.

4. Filing includes real estate business filing and housing contract filing. The former refers to the price of housing sales information filed with the real estate management unit after the development and design company obtains the pre-sale permit and sells it nationwide. The latter refers to a method that the buyer keeps legal recognition by registering with the real estate management unit after signing a contract with the real estate enterprise. This paper focuses on filing a case in the latter case.