Thanks to the comments and suggestions, I think I have something that seems to work, at least for the majority of cases. I have to remember to check [Case Sensitive], and it certainly is not fool proof, but so far seems to let me [Replace and Find] and do a manual check. Add this to my Saved Searches
It will fail on BR's examples, so I won't let 'er rip, but stepping through is a lot faster
Find:
<p>([A-Z]{2,}[\s\.,-;:]){1,6}
Replace:
Capitalize text (ignore tags)
I don't know if this is the most effecient or bullet proof way, so I will take any suggestions