The idea is to change the property status into pending everytime someone make an edit. There may be a “logistic” problem since there are 7 separate functions that edit a property and you will have to add code in each of these function

for description – function is wpestate_ajax_update_listing_description

add this code

for price – function is wpestate_ajax_update_listing_price
for media – function wpestate_ajax_update_listing_images
for details function wpestate_ajax_update_listing_details
for location function wpestate_ajax_update_listing_location
for ammenities and features function wpestate_ajax_update_listing_ammenities
for calendar function wpestate_ajax_update_ical_feed

and you need to add this code

 

$post = array(
‘ID’ => $edit_id,
‘post_status’ => ‘pending’,
);
$post_id = wp_update_post($post );

After these changes are done every time a user do a change in a property the status will be set to pending and you will have to approve the property again .

 

To get the email must remove comments for listing_edit email from  wpestate_email_management function

and from  function wpestate_emails_extra_details