Sharing with Guests

In the support article titled “Share with guests in 1Password for Families,” it starts of with a few uses case scenarios such as inviting your accountant to share financial info or inviting your realtor who needs building codes or inviting your babysitter who needs household information.

In such scenarios, what I’m not clear on is… Would I be creating a vault for each one of those people to share those credentials or is there one shared vault and I am selectively choosing which logins are shared with who. 

Thanks