On demand by Lender, Borrower will do any act and execute any additional reasonable documents reasonably required by Lender to secure the Loan, to confirm or perfect the lien of the Mortgage and the other Loan Documents, including, but not limited to, additional financing statements or continuation statements, new or replacement notes and/or loan documents and agreements supplementing, extending or otherwise modifying the Loan Documents and certificates as to the amount of the indebtedness evidenced by the Note from time to time.