Google has just announced the availability of My Business Locations (i.e. bulk) Business Accounts. Essentially this feature allows for an easy secure way to add social managers in bulk and to transfer the ownership of the bulk account or parts of the account to another users.Business accounts provide a safe way to share management of your locations with multiple users. “Business accounts are like a shared folder for your locations–a simple way to share access to a set of locations with coworkers.”
In the past ownership and management has been associated with the location. Google has abstracted ownership from a listing level to an account level and the listing or a group of listings can be associated with that account. And that business account can have owners and managers.
Perhaps this goes without saying but maybe not. The bulk accounts needs to have been upgraded to the My Business Listing status before these new business accounts can be implemented so if your account has not yet been upgraded, you need to wait.