If you have a Brokerage account and you are an admin, you are able to add new admins right from the Dashboard by following the steps below.
Log into your Brokerage Dashboard here.
On the right hand panel, click on "Manage". You will then see the tab that says "Admin".
Click on "Add Admin" to begin adding your admin! If your Brokerage requires an admin to be tied to an office, an office field will also appear.
To finish up, click on "Add Admin" again and you should be all set!