The whole point of this is for the buyer to avoid paying an extra $80, which in my case was a deal-breaker in terms of selling my equipment.
Here is the full chat log of my recent conversation with support, when I wished to confirm this situation:
Nowie: Thank you for contacting the Ooma Sales Department, how may I assist you today?
Brian: I own some Ooma equipment (Telo and handset) and wish to sell to a friend. I understand there is a $80 reactivation charge, but I don't wish to deactivate it at all. I just want to sell him the equipment and he can change the phone number and caller ID name. Is it possible to change ownership in this manner without deactivation/reactivation and the associated fees?
You just have to give him your password so that he can change the profile himself and the cc info.
Now, he just needs to pay 19.99 to change the phone number.
Brian: Great - that's exactly what I was hoping for. I have no problem changing all of the profile information on the account (name, password, service address, billing information, etc etc) and so did not see any reason to deactivate the device and have this extra charge. Thanks!
Nowie: No problem!