@Stan-and-Jan0,
you might post about it in the Host Voice section.
As Airbnb grows and as they have many commercial hosts, it's resonable to expect, that sooner or later people will sell their commerce and will want to sell it with the clientele, like a restaurant, a hairdresser or a doctor. The business part of a hotel may be worth more than the walls.
It's in Airbnb's interest to find a procedure for such a transfer.
In the host voice chapter, you post proposals for procedures or features and hosts, who like it, enforce the proposition. If Airbnb sees profit in it, they implement it.
In your case, you look for a way to sell a property with it's airbnb history or at least with it's already started airbnb bookings.
Thinking about it (bored in my holidays), I'd deem profitable for all to be able to sell a property with the open bookings, clone the listing, for the new host, who may adapt it after he made the changes, indicate above the cloned reviews, that they occured with another host, but at the same place and send an automatic mail to all booked guests, that the property management changes. I suppose that legally they need to have an opt out of their reservation, if the host changes.
Long before Airbnb, we listed on other websites, sometimes for others and most had clauses, that you could not transfer a listing, any change of owner (even a succession after a death) terminated the paid ad with no refund for the remaining period. that was pretty annoying and clearly intended to sell another advertisement. As Airbnb does not charge for the listing being online, they could handle it differently.