@Will Roberts Thanks for the reply. What i am willing to achieve is to lock the Person and Organization's profile creation from Unconfirmed/Unverified members not unauthenticated users. (please see question 3)

I think you can probably do that in membership settings and just have them only be able to "create profile". Studio>Permissions

While looking in permissions I was able to only have "Create Profile" and "Create Organization" in Account so basically they cannot do or see anything until after they've created a profile or organization. Same for Unauthenticated and Uncomfirmed.