When you want to send visitors a copy of the Legal Agreement they signed and thank them for their visit to your office, you can turn on an automatic visitor summary email.
You'll find this feature within your check in button settings. Hover your mouse over your check in button, click the edit that pops up and scroll ALL the way to the bottom to enable this feature. Under Visitor Features, click on Summary Email and save your button.
The email that visitors receive look like this: