You will be able to add your Offices's review widget by following these steps.
Step 1: Log into your website management and head to the Articles area
Step 2: In the Articles Manager click a Category that is not being otherwise used (In this case we chose Location) and then "Add Article". In this area add the title you'd like (eg; RateMyAgent) and click on the "source code" button>> paste the widget code >> OK >> Save the article
Step 3: Navigate back to the Dashboard and in the Homepage Modules area, select "Add Module". Select "CMS Content" and the CMS article you created earlier. You can then drag and drop to change where on your homepage the Widget appears