My sister bought a house for my sister in full, and something happened to my sister. Does it affect my sister's property?

Does not affect. The identification of housing property rights shall be subject to the signing of the contract. So my sister's accident has no effect on her property. The most direct way to confirm the ownership of real estate is based on registration records. Through registration, the establishment, transfer and change of real estate rights will be made public, so that the public can understand the state of real estate rights formed on a real estate. The registration system is of great significance to the establishment and maintenance of market economic order.