Hi @jeangoodwyn
For something like that, I’m afraid you need to use wpdb class instead. This page should give you more idea about it: https://codex.wordpress.org/Class_Reference/wpdb.
Keep in mind that repeater field has a unique naming system for the meta key. This page should give you more idea about it: http://www.advancedcustomfields.com/resources/repeater/#faq.
Another approach is to create a custom post type too for the apartment too, so you can easily query it, and it’ll be flexible for further customization.
I hope this makes sense. Thanks!
