When you switch a review off in Reva, it may still appear on your property page. Whether it is removed depends on your version of the Homerunner Reva plugin.
Version 0.1.5 or later. Your site follows Reva’s display setting in both directions. After you switch a review off in Reva, either wait for the next automatic sync, or open Properties in WordPress and click Sync Reviews on that property. The review is removed from the property page and the rating badge updates within a minute.
Versions older than 0.1.5. The plugin only ever adds and updates reviews, so unpublishing a review in Reva has no effect on your site. To remove it, go to Reviews in WordPress, find the review, and mark it hidden on the front end. Alternatively, contact support to update the plugin to 0.1.5 or later.