Notice that an arrest or arrests for prohibited conduct
have occurred at a location shall be served by personal service upon
the owner or person in charge of the affected building or structure
or, if no such person can be reasonably found, by mailing said owner
such notice by means of certified mail, return receipt requested,
to the last known address as shown by the records of the Town Assessor
and by securely affixing a copy of such notice upon the door of the
affected building or structure. A copy of the notice shall also be
mailed by certified mail to any mortgagee of record of the property
to such address on file in the office of the Receiver of Taxes or,
if no such address exists, to the address indicated on the recorded
mortgage.