Legal analysis: If two people sign the IOUs, the IOUs are owned by two people, and the two people who sign them are jointly and severally liable. If the court enforces it, it is ok to enforce the property of one or both people.

Legal basis: Article 688 of the Civil Code of People's Republic of China (PRC). If the parties agree in the guarantee contract that the guarantor and the debtor shall be jointly and severally liable for the debt, it is a joint liability guarantee.

When the debtor of joint and several liability guarantee fails to perform the due debt or the circumstances agreed by the parties occur, the creditor may require the debtor to perform the debt, or may require the guarantor to assume the guarantee liability within the scope of its guarantee.