You can simply give your username and password to the new owner and allow them to change the contact information using a Domain Management Interface. They should also move the domain into a separate profile with a unique username and password.
To change the contact information:
Log into a Domain Management Interface and click on the Organization link and update the information.
You’ll also probably want to change the username/password to something different using the following method:
- Log into a Domain Management Interface
- Click on the Manage Profile link
- Click on Change Ownership of Domain
- Enter in a new username and password that will be used to access the domain
- Click on Change Owner
If you have a grouped domain profile with multiple domains all grouped together, it is important to remember that anyone with the login information can change all the contacts/ownership information for all the domains in that profile. Ensure you move the domain out of the group profile first before giving the username/password to someone else.