Legal analysis: selling a house to a bank requires the signature of both husband and wife. Under normal circumstances, the disposal of the same property between husband and wife requires the consent of both husband and wife. If one party disposes of the property privately, the other party has the right to claim compensation. However, if the house for sale belongs to the husband and wife's personal property, it can be sold as long as the property owner signs it. According to the relevant regulations, if one spouse conceals, transfers, sells, damages or squanders the joint property of the husband and wife, or forges the joint debt of the husband and wife in an attempt to occupy the property of the other spouse, the husband and wife can divide the joint property with less or no distinction. After the divorce, if the other party finds the above-mentioned behavior, it may bring a lawsuit to the people's court and request to divide the husband and wife's property again.

Legal basis: Article 1092 of the Civil Code of People's Republic of China (PRC). If one of the spouses conceals, transfers, sells off, damages or squanders the joint property of the husband and wife, or forges the joint debt of the husband and wife in an attempt to occupy the property of the other spouse, the husband and wife may divide the joint property with less or no share in divorce. After the divorce, if the other party finds the above-mentioned behavior, it may bring a lawsuit to the people's court and request to divide the husband and wife's property again.