anno_fcs = ['SANITARY_MAIN',
            'STORM_MAIN',
            'WATER_MAIN',
            'WATER_SERVICE']

createExtentPoly(anno_fcs)
anno_extent = os.path.join(interim_gdb, 'anno_extent')
lyrName = 'extent_layer'
arcpy.MakeFeatureLayer_management(anno_extent, lyrName)
xtent = arcpy.mapping.Layer(lyrName)
arcpy.mapping.AddLayer(df, xtent)

for fc in anno_fcs:
    lyrName = fc
    arcpy.MakeFeatureLayer_management(fc, lyrName)
    addLayer = arcpy.mapping.Layer(lyrName)
    arcpy.mapping.AddLayer(df, addLayer)
mxd.save()


lyrs = [l for l in arcpy.mapping.ListLayers(mxd) if l.name <> 'extent_layer']
for lyr in lyrs:
    print(lyr.name)
    lblclass = lyr.labelClasses[0]
    lblclass.className = 'Diameter_{}'.format(lyr.name)         # className
    lblclass.expression = '"Diameter: " & [DIAMETER] & """"'    # expression
    if lyr.name == 'WATER_MAIN':
         lblclass.expression = '"Diameter: " & [DIAMETER] & """" & "  Plan: " & [PLANNUMBER]'
    lblclass.showClassNames = True                               # showClassLabels
    lyr.showLabels = True

    arcpy.TiledLabelsToAnnotation_cartography(map_document = "C:UsersgkeithDesktopAnno.mxd",
                                              data_frame = "Layers",
                                              polygon_index_layer = anno_extent,
                                              out_geodatabase = interim_gdb,
                                              out_layer = 'GroupAnno_{}'.format(lyr.name),
                                              anno_suffix = '_Anno_diam_',
                                              reference_scale_value="500",
                                              reference_scale_field="",
                                              tile_id_field="",
                                              coordinate_sys_field="",
                                              map_rotation_field="",
                                              feature_linked="STANDARD",
                                              generate_unplaced_annotation = 'GENERATE_UNPLACED_ANNOTATION')
    arcpy.mapping.RemoveLayer(df, lyr)
    mxd.save()