If the voluntary declaration and commitment is the true intention of one of the parties, the commitment letter shall be deemed as the commitment made by one of the parties to the property division and debt undertaking at the time of divorce, and shall have corresponding legal binding force on the other party.
 The agreement shall be in writing. In the absence of an agreement or unclear agreement, the provisions of Articles 17 and 18 of this Law shall apply. The agreement of the husband and wife on the property obtained during the marriage relationship and the pre marital property;
 It is binding on both parties. If the husband and wife agree that the property acquired during the marriage relationship shall belong to each other, and the debt of the husband or wife to the outside world, and the third person knows the agreement, the property owned by the husband or wife shall be used to pay off.