It shall be the obligation of the Cliffside Park Tax Assessor to notify the current grantee of any unit converted within this time period (November 1, 1999 through adoption April 4, 2000) by certified mail, return receipt requested, advising them of the illegal and/or improper conversion, enclosing a copy of this article and advising the respective parties that they have until July 1, 2000 to comply with the filing requirements herein.