Posted this to ABB feedback, but posting it here as well.
Probably selling one of my condos and checked with ABB about how to transfer reservations. The response was basically 'Cancel the bookings. Cancel them ALL!'
This is complicated and stressful for everyone. It means the booking gets cancelled outright which is super stressful for guests. (According to ABB if I have the sale paperwork, the cancellations don't affect my Superhost status, so it's not a big deal on my end but it sucks for the new host and guests)
There really should by an easy way of allowing the new/old hosts to send an email to the guest announcing the changeover and giving them two buttons: 1) Rebook - instantly and easily transfers the booking to the new host/listing or 2) Cancel - which cancels the booking. That would give the guest some agency over what happens and allow hosts to gracefully hand things over.
I get not wanting to force guests to book with a new host but I don't see how forcing hosts to cancel everything helps anyone. It's frustrating they don't have a better solution.