IOUs are one of the important pieces of evidence to prove the borrower's relationship, but IOUs alone are not enough to sue the borrower. Lenders also need to consider the following factors before suing a borrower:
1.Whether the content of the IOU is legal, true and valid. The lender needs to confirm whether the identity information of the borrower on the IOU is true, whether the loan amount, loan term, loan interest rate and other agreements are legal, and whether there is a guarantor or collateral.
2.Whether the borrower has the ability to repay. The lender needs to understand the borrower's financial situation and ability to repay, and if the borrower is unable to repay, then even with an IOU, it may not be possible to recover the loan.
3.Whether the borrower has defaulted in bad faith. The lender needs to know whether the borrower has deliberately defaulted or failed to repay the loan, and if this happens, the lender can apply to the court to enforce the loan and recover the loan.
4.Whether the statute of limitations has expired. The lender needs to pay attention to the repayment period and the limitation period on the IOU, if the limitation period has expired, then the lender may lose the right to prevail.
Before suing the borrower, the lender needs to prepare the above evidence and materials, and consult a lawyer or legal institution to understand its rights and obligations, as well as the specific process and precautions for suing the borrower. Only when these conditions are met can the lender recover the loan through legal means.