By signing a reaffirmation agreement, you are agreeing to be held personally liable for repayment of the debt beyond your bankruptcy discharge and bankruptcy ending. These documents are only used in ch. 7 relief, not ch. 13. If you fail to make the payments beyond the bankruptcy, that specific lender could sue you for any remaining balance on the loan.
Reaffirmation agreements are usually only signed for car loans or mortgages when clients want to keep their property. The benefit of signing is that it will allow the loan to continue to report on your credit, which can aid in rebuilding your credit. It also allows you to have online access to your account, which is often shut down by lenders after bankruptcy is filed. If your income is not stable, we do not recommend that you sign a reaffirmation agreement.