Notary fees are exempt from SE taxes, does that hold true for even an attorney?

His records have the notary fees and attorney fees separated, but the EA that prepared his prior years returns didn't make any adjustments for the SE tax on the notary income. 

Ive been digging around online, Im not finding anything concrete.   

I asked in a FB group of accountants and someone said that since this is ancillary to his law practice that it wouldn't be exempt, but I cant find anything online about it.

Didn't we have an attorney that use to frequent in here...BobKaufmann...was that his name?