Does a Facebook Business page disappear if the original creator deletes their personal account after they gave ownership to an agency? We can't risk losing that page.
According to this post from a Facebook Help Team member:
if you want to delete your business Page, you must be the current admin of the Page.
Therefore, if you are no longer the current admin, you won't be able to delete the business page -- even if you delete your account.
Also, per Blogging Bistro, even if your business page does somehow get removed when you delete your personal page, you'll have 14 days to reactivate the page before it's deleted permanently.
No, Page will not disappear. If there are more than one Admin, page will not disappear. So before deleting your personal profile, make someone Admin of the page.
To add other persons for any role, you must be an Admin of the Page.
Note - always give an Admin role to a trusted person because Admin can remove you from the page and take your Page from you forever.