validation.rb

        required(:hes_sfr_att_townhome_position_post).maybe(:str?).when(:not_left_or_middle?).when(:not_front_represents_all_types?) do
          value(:hes_right_side_windows_area_post).filled?
        end
        required(:hes_sfr_att_townhome_position_post).maybe(:str?).when(:not_left_or_middle?) do
          value(:hes_right_side_windows_frame_post).valid_window_frame?
        end
        required(:hes_sfr_att_townhome_position_post).maybe(:str?).when(:not_left_or_middle?) do
          value(:hes_right_side_windows_glass_layers_post).filled?
        end