Go to OwnerRez > Settings > WordPress Plugin and drill in. Click "Create WordPress Connection" to get started and fill out the form and save. Read the Instructions tab on the resulting connection.
Login to your WordPress site, go to Plugins menu and click "Add New" button at the top.
Search for "OwnerRez" and you'll see a tile show up. Click the "Install Now" button on the tile.
After installing, click to Active it. Activation will redirect to a Settings > OwnerRez page. Fill in and click Save at the bottom.
You're now able to use the plugin. Create a page or post in your WordPress site and type short-codes where you want property information to appear.
For example short-codes, look at the "Generate Shortcodes" tab on the WordPress Connection that you created in OwnerRez.