I am working with a rather old document that does not have any styles associated with it. I am trying to make it a more easily navigable document by first adding some styles so I can create a table of contents. There are several hundred instances where the line of interest begins with "State Community Name: " followed by the community name (e.g. State Community Name: GRASSLAND, State Community Name: FOREST). I'd like to change that line, including the text after "State Community Name:" to Heading 1.

There are also lines that contain ' "X" Rank Specifications: ' where X is variable. I'd also like to change that entire line to Heading 2.

It seems like separate VBA scripts could do these, though I'm not much good yet at figuring out scripts on my own.
Thanks!

Unless you're proposing the change the Style of the whole paragraph, you will have trouble with having Word identify a sentence. That's because VBA has no idea what a grammatical sentence is. For example, consider the following:
Mr. Smith spent $1,234.56 at Dr. John's Grocery Store, to buy: 10.25kg of potatoes; 10kg of avocados; and 15.1kg of Mrs. Green's Mt. Pleasant macadamia nuts.
For you and me, that would count as one sentence; for VBA it counts as 5 sentences.

If you're trying to change the Style of the whole paragraph, you can use a wildcard Find/Replace where, for example:
Find = State Community Name:*^13
Replace = ^&
And you set the Replacement Style to Heading1. No macros required.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

That's pretty slick, thanks! I should have clarified that "State Community Name:" is only found as a single line (essentially a paragraph in word), so this worked perfectly.