gistfile1.txt

add_filter( "houzez_property_feed_properties_due_import_xml", 'exclude_lease', 10, 2 );
function exclude_lease( $properties, $import_id )
{
    $new_properties = array();
    
    foreach ( $properties as $property )
    {
        if ( isset($property->Categories) && (string)$property->Categories === 'Lease' )
        {
            // ignore
        }
        else
        {
            $new_properties[] = $property;
        }
    }
    
    return $new_properties;
    
}