Whenever a notice is to be mailed as provided in Section 12-30, and the address that appears on the assessor's records is the address of a mortgage lender, or in any event whenever the notice is mailed by the township assessor or chief county assessment officer to a taxpayer at or in care of the address of a mortgage lender, the mortgage lender, within 15 days of the mortgage lender's receipt of the notice, shall mail a copy of the notice to each mortgagor of the property referred to in the notice at the last known address of each mortgagor as shown on the records of the mortgage lender.
35 ILCS 200/12-35