add_action( 'propertyhive_property_imported_blm', 'set_ph_custom_fields', 10, 2 );
function set_ph_custom_fields($post_id, $property)
{
    if ( isset($property['INVESTOR_LIST_DISPLAY']) )
    {
        update_post_meta( $post_id, '_investor_list_display', $property['INVESTOR_LIST_DISPLAY'] );
    }
    if ( isset($property['INVESTOR_RENT_AMOUNT']) )
    {
        update_post_meta( $post_id, '_investor_rent_amount', $property['INVESTOR_RENT_AMOUNT'] );
    }
    if ( isset($property['INVESTOR_YIELD']) )
    {
        update_post_meta( $post_id, '_investor_yield', $property['INVESTOR_YIELD'] );
    }
}