http://support.google.com/adwords/bin/answer.py?hl=en&answer=71163
- Sign in to your AdWords account at http://adwords.google.com
- Click the My Account tab.
- Select Account access.
- Click Invite other users.
- Enter the email address wendy@blackrocknetworks.com
- Select the access level "MCC access"
- Click Send invitation.