Signing stage: if only one person's room book is issued, the spouse does not need to be present when signing the contract, but both husband and wife should provide complete documents and power of attorney. 2. Face-to-face signing stage: Face-to-face signing of commercial loans, no matter how many people hand over the house, both parties must be present. The main borrower must be present at the face-to-face signing of the provident fund, and the other party needs to be notarized if it is not present. 3. Handover stage: If one person's room is sent out, the other party does not need to be present. If a room book for two people is issued, the person who is not present must provide a power of attorney. Matters needing attention for both husband and wife to buy a house together. Husband and wife need much more documents to buy a house together than to buy a house alone. Therefore, it is best to prepare all documents before buying a house, so as not to miss the discount. In order to avoid unnecessary disputes between husband and wife because of their respective shares after buying a house, the share of the house can be divided in proportion in advance.