[singleshot_]

I'm a little confused by this comment because a sole proprietorship cannot exist in the form of a corporation. Of course, one person can have a corporation all to themselves, but the definition of a sole proprietorship is a business without a more complex form.

I'm guessing what you actually mean is "Also a common structure for one person who does business on their own, who has incorporated, and who is their own sole board member." Is my inference correct?

[skissane]

What I mean is a person who has a sole proprietorship desires greater legal protection, so they set up a corporation to replace their sole proprietorship, but it is still just a one natural person-owned business-in legal terms it is no longer a sole proprietorship, but in non-legal terms nothing has changed