you don't sell the usernames. the usernames are owned by "the business" and you're selling the business and in the process of doing so, pass along the credentia

you don't sell the usernames. the usernames are owned by "the business" and you're selling the business and in the process of doing so, pass along the credentials to the social accounts. thats perfectly fine. imagine big company X gets sold. Clearly the new owner wants to retain the social accounts and theres nothing wrong with that.