This method gives control over hosting and domains. 
  1. Log in to your Bluehost Account Manager.
  2. Click your profile icon (top right) and select Accounts & Users or Users & Roles.
  3. Find the account you want to share and click Manage.
  4. Scroll to User Roles & Permissions and click + ADD USER.
  5. Enter name as Garth Jordan  and Email as support@2556media.com, then choose a Role (Admin).
  6. Click INVITE. They'll get an email to set up their own login and access.