Required. When purchasing a property, if it is purchased jointly by a husband and wife, both spouses usually need to sign. This is because in a marriage relationship, both spouses have the rights and obligations to own the same property, so both parties need to sign for confirmation when purchasing a property. When signing, you need to confirm the signature method. You can choose to sign on the house purchase contract or have it notarized and signed at a notary office. You must carefully read the content of the house purchase contract to ensure that you understand the terms and obligations in the contract, and confirm the accuracy and accuracy of the signature content. Integrity.