Reasons for failure: First, there is no pre-sale permit. Secondly, the house has not been completed and accepted. Then the real estate contract was not registered. Finally, there are mortgages on land or buildings under construction.
Generally speaking, if everyone's house has been delivered for use, then the real estate company must hand over all the relevant materials needed for property rights to the property owner within the time stipulated in the contract. Generally speaking, if the developer does not have these problems, there should be no problem in handling the property certificate three months after the delivery of the house.