Section 11-416. Owner's registration cards; mailing tax bills and notices to registered owners or their designees

a.  The  commissioner  of  finance  shall  maintain a file of owner's registration cards submitted by owners
  of real property. Each such owner's registration card shall be signed by
  the owner or a duly authorized representative and shall state  the  date
  on which it was filed, the owner's full name and post office address and
  a  description  of  the premises by reference to the section, block, and
  lot numbers on the tax map.
    b. The commissioner of finance shall mail bills for taxes, charges and
  assessments to all owners who have filed owner's registration  cards  as
  herein  provided,  but  the failure of the commissioner of finance so to
  mail such bill shall not invalidate or otherwise affect the tax,  charge
  or  assessment  represented  thereby  nor  prevent  the  accruing of any
  interest or penalty imposed for the non-payment thereof, nor prevent  or
  stay  proceedings  under  this  chapter,  nor  effect  the  title of the
  plaintiff or any purchaser under such proceedings.
    c. The commissioner of finance shall also mail notice  of  foreclosure
  and  any  other  process required by this chapter to all owners who have
  filed owner's registration cards whenever the parcels as to  which  such
  cards  were  filed  are  included  in  a  list of delinquent taxes filed
  pursuant to this chapter. The failure to receive such notice or  process
  as  herein  provided  shall  not  affect  the  validity of any action or
  proceeding brought pursuant to this chapter.
    d. An owner who files an owner's registration card may also  designate
  thereon  the full name and post office address of a mortgagee, lienor or
  other person to receive bills and notices.  Where  such  designation  is
  made,  the  commissioner of finance shall not mail any bills and notices
  to the owner but shall  mail  all  bills  and  notices  to  the  owner's
  designee.