Hello Everyone,
On this topic I have a question for Marshall, can the same person approve and verify a document? Or should these be two different people? Just curious.
Thanks for any answers.

That entirely depends upon the standard and your business.
Generally, if you approve a document for use, I don't see why you would be restricted from verifying the information filled in on the document.
Remember, my answer was given without any context as to what the document is.
If your job is to approve a fill in the blank document for use, that's entirely different than "verifying" the information filled in.
If you create a work instruction, and verify that the document is correct, that's an entirely different animal.
Marshall