Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
  .InsertBefore vbCr
  .AutoFormat
  With .Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Text = "^13[!^13\-]{1,}"
    .Replacement.Text = ""
    .Forward = True
    .Wrap = wdFindStop
    .Format = False
    .MatchWildcards = True
    .Execute
  End With
  Do While .Find.Found
    With .Duplicate
      .Start = .Start + 1
      .Font.Bold = True
    End With
    .Collapse wdCollapseEnd
    .Find.Execute
  Loop
End With
ActiveDocument.Paragraphs.First.Range.Delete
Application.ScreenUpdating = True
End Sub