If you have an existing free account, you can choose to use the same email address to join a Dropbox team account. All of your docs will move with you to your team account.
You can also choose to create a new account with a different email address. In that case, you’ll start with a brand-new, empty account.
Note: If you were using the old release of Dropbox Paper and you joined a Dropbox team using the new 2020 release of Paper, the docs from your old account can only be accessed through the search bar on dropbox.com. You can use the search bar to find your Paper docs by their titles or the content within them.
If you’re an admin and choose to disband a team, all content you own will move back with you to your personal account, including shared docs that you’ve accessed before or have been invited to.
Note: Any shared docs that were created by that member will move to the admin’s account that removed the member.
Contact support for answers to any other questions you might have.