Sub Demo()
Application.ScreenUpdating = False
With ActiveDocument.Range
  With .Find
    .ClearFormatting
    .Replacement.ClearFormatting
    .Forward = True
    .Wrap = wdFindContinue
    .Format = False
    .MatchWildcards = True
    .Text = "[^13]{1,}"
    .Replacement.Text = " "
    .Execute Replace:=wdReplaceAll
    .Text = "[ ]{2,}"
    .Replacement.Text = " "
    .Execute Replace:=wdReplaceAll
    .Text = "(<[0-9]{1,}[!0-9]@)([A-Z]\))"
    .Replacement.Text = "^p\1^p\2"
    .Execute Replace:=wdReplaceAll
    .Text = "(<[0-9]{1,}[!0-9]@) ^13"
    .Replacement.Text = "\1^l"
    .Replacement.Style = "Strong"
    .Execute Replace:=wdReplaceAll
  End With
End With
Application.ScreenUpdating = True
End Sub