c:\@Work\Perl\monks>perl -wMstrict -MData::Dumper -le
"my $data = [
   { Ad1 => '20 SOUTH CENTRAL  #B3', status => 'Property', City => 'NY', zCode => '0002', name => 'John D' },
   { Ad1 => '15 SOUTH CENTRAL  #B4', status => 'Property', City => 'NY', zCode => '0002', name => 'John V' },
   { Ad1 => '100 main St.',          status => 'houses',   City => 'BO', zCode => '0007', name => 'Mary'   },
   ];
 ;;
 foreach my $hr_row (@$data) {
   if ($hr_row->{ 'status' } eq 'houses') {
     my $name  = $hr_row->{ 'name'  } || '';
     my $ad1   = $hr_row->{ 'Ad1'   } || '';
     my $town  = $hr_row->{ 'City'  } || '';
     my $zcode = $hr_row->{ 'zCode' } || '';
     ;;
     @{ $hr_row }{ qw(new_name new_ad1 new_City new_z_code) } =
                 (   $name,   $ad1,   $town,       $zcode   );
     }
   }
 ;;
 print Dumper $data;
"
$VAR1 = [
          {
            'status' => 'Property',
            'name' => 'John D',
            'Ad1' => '20 SOUTH CENTRAL  #B3',
            'City' => 'NY',
            'zCode' => '0002'
          },
          {
            'status' => 'Property',
            'name' => 'John V',
            'Ad1' => '15 SOUTH CENTRAL  #B4',
            'City' => 'NY',
            'zCode' => '0002'
          },
          {
            'new_City' => 'BO',
            'status' => 'houses',
            'new_ad1' => '100 main St.',
            'name' => 'Mary',
            'Ad1' => '100 main St.',
            'City' => 'BO',
            'new_z_code' => '0007',
            'new_name' => 'Mary',
            'zCode' => '0007'
          }
        ];