Honestly, the new owners shouldn't get your reviews. They're a whole new business and can be total ****heads and you were an excellent owner, so why should the experience guests got from you transfer to the new owners?
As for existing rentals, you get the money, so you need to work out with the new owners whether any existing rentals should be kept and how the money from those rentals should transfer to them. This is something that might involve the closing attorney if there are a lot of existing rentals that they want kept on the calendar. Also, any cancellations of existing reservations that involve a refund would come from you, so you can't just suddenly set the bank account to their bank account unless the deposits are transferred as part of closing.
If you search the forum you will find many discussions on selling your VR and how to handle future rentals. Basically you need to adhere to statutes and laws governing the transaction in your location.
Suggest you contact a Real Estate Attorney and not rely on your agent to guide you- unless the agent is well versed in STR/VR.
I recall when the question of existing agreements that need to be conveyed at closing have been discussed, we have found that different cities and states have different laws. This is not Federal or IRS, so I thin the best advice above is to get a professional to assist in correctly conveying the future guests.
And agree 100% with feibus on the reviews. They were reviews of your service on the home you managed.