1. According to Article 17 of the Marriage Law, the income from wages, bonuses, production and operation obtained by the husband and wife during the marriage relationship; Income from intellectual property; The property obtained from inheritance or donation shall be jointly owned by the husband and wife.
 Article 18 of the Marriage Law stipulates that one party's premarital property is the property of the husband and wife.
 2. Although the premarital property of the remarried elderly belongs to individuals, the income after marriage should be the joint property of the husband and wife according to law, and should be used jointly by the husband and wife.
 According to China's Inheritance Law, husband and wife are each other's first legal heirs. The remarried spouse and the children of the elderly are equally entitled to inheritance.
 3. Perhaps just because they are equally entitled to inheritance, many children will oppose their parents' remarriage, or require the elderly to agree that the property of each party should be inherited by their children through making a will. If the old man made an agreement on the property before marriage, it shall be determined according to the agreement; If there is no agreement on the ownership of their respective property, it can only be determined in accordance with the law.