Is it possible for us to force MFA enrollment for Dashboard Members after they sign up?
At the moment, there is no way to enforce an MFA requirement for Tenant Members. It is available as an opt-in only, though we do have a backlog item to make this configurable as required for Tenant Members.
If you would like to see this functionality in a future release of Auth0, we would encourage you to vote on this feature request post in the Auth0 Community: Feature Request - Ability to force MFA on tenant admins
These requests help us understand which new features our users would like to see in future releases of Auth0.