Duplicate Signature blocks

> I'm just trying to streamline the process. 

You're doing the opposite, though. The only way to do that would be to apply a separate digital signature to each section, which will be much more time-consuming, make the file much larger, and less stable.

You only need to apply the digital signature once. In doesn't matter on what page you see it. In fact, it doesn't need to appear on any page at all. You can sign the file without there being a visual indication of it at all. All that matters is that the signature appears in the Signatures panel on the left, and that it's valid.

Generally a single PDF form field can show in multiple locations across multiple pages with synchronized contents. For signature field, though, the PDF specification explicitly forbids this. Thus, while structurally possible, creating signature fields with multiple appearances in a PDF makes it, strictly speaking, invalid. So Acrobat does not support creating such fields. 

On the other hand, the major signature validators currently don't check whether a signature field has multiple appearances. In the wild, therefore, there are numerous PDFs with such fields nonetheless. Any time, though, validators could start checking this and mark the signatures of such PDFs as invalid.