c. A legend in substantially the following form suffices to comply with the requirements of this section:
THIS IS A BALLOON MORTGAGE SECURING A VARIABLE (adjustable; renegotiable) RATE OBLIGATION. ASSUMING THAT THE INITIAL RATE OF INTEREST WERE TO APPLY FOR THE ENTIRE TERM OF THE MORTGAGE, THE FINAL PRINCIPAL PAYMENT OR THE PRINCIPAL BALANCE DUE UPON MATURITY WOULD BE APPROXIMATELY $____, TOGETHER WITH ACCRUED INTEREST, IF ANY, AND ALL ADVANCEMENTS MADE BY THE MORTGAGEE UNDER THE TERMS OF THIS MORTGAGE. THE ACTUAL BALANCE DUE UPON MATURITY MAY VARY DEPENDING ON CHANGES IN THE RATE OF INTEREST.