The sales contract signed without the consent of * * * and * * is invalid, and if the parties do not ratify it afterwards, they can recover the housing rights; Without the consent of some people, the signing of the sales contract is valid for their share, and the punishment beyond their share is invalid. However, if a third party purchases in good faith, pays a reasonable consideration and goes through the formalities of property right registration, it shall be deemed valid.

legal ground

Article 30 1

The disposal of * * *' s real estate or chattel, and the major repair, change of nature or use of * * *' s real estate or chattel shall be subject to the consent of * * * owner or all * * * owners, unless otherwise agreed by * * * owner.

Article 3 1 1

In any of the following circumstances, the transferee obtains the ownership of the real estate or chattel:

The transferee is in good faith when accepting real estate or movable property;

(2) Transfer at a reasonable price;

(3) The transferred immovable property or movable property that should be registered according to law has been registered, and the transferred immovable property or movable property that does not need to be registered has been delivered to the transferee.