Your above operation mode is not recommended. 1. If you sell the above-mentioned house and buy a second suite before marriage, it is the personal property before marriage, and the repayment part and the corresponding value-added part after marriage are the joint property of husband and wife. 2. If the house is now registered in the woman's name for tax avoidance, and her own name is added after marriage, then the house is the property of husband and wife. Of course, the court will determine it according to the actual capital contribution. If both parties sign a prenuptial agreement, your above concerns can be completely avoided.