If one brand is sold (amazon establish) to a new seller "brand buyer", obvious that brand has listings, brand store, brand registry on old sellers account. Now a new brand owner buys that, with new seller account, what he ahs to do to sell those listings, to control that brand store, obvious one can sell through "list option with ASIN" but how to control the main listings if in case new owner wants to add new variation , or wantas to add new images, or content or improve weight and sizes. If he creates new then all the ratings and review wqill disaapear.

Same question for brand store, how does his new seller account get all the access of that brand which they bought.

Does that brand store gets into new seller account or remains in old sellers account ? if it does not transfer to new seller account and remains in old seller account then how does this buying of brand is justified?

Which is the best department in amazon to reach for this kind of exercise, if it happens ?