This article explains how to promote a listing to facebook with the goal of getting visits from facebook back to your post.
Find the IDX property page of your listing and copy the URL.
Promoting at Facebook
Go to your Facebook Business Page and write your announcement, such New Listing at 123 Main Street, Open House this weekend… Make it snappy and compelling to communicate your enthusiasm.
Paste in the copied URL of the IDX page from your website.
This should deliver the primary photo of the listing. This automated system at Facebooks works most of the time. However, it can be the case that the system is either unable to find the right photo or even any photos. However this can be manually overridden by clicking the ‘X’ in the top right of the photo it did find and simply following Facebook’s method for adding photos.
When measuring engagement, or interactions with Facebook posts we see that posts that feature multiple scrolling photos perform much better than single photos.