Comparing the Address of 2 Separate Bookmarks in the Doc: Return to List

  Address1 = ActiveDocument.Bookmarks("Pt1").Range.Start
  
Address2 = ActiveDocument.Bookmarks("Pt2").Range.Start
  
If Address1 < Address2 Then . . .

See also:
Adding a Bookmark
Deleting ALL Bookmarks in Document
Deleting a named Bookmark
Moving Cursor to Named Bookmark
Predefined (Built-In) Bookmarks