This work analyzes the Code of Ethics and Discipline of the Brazilian Bar Association aiming to demonstrate that advertising can be a parallel to the legal environment. Within the problem that is: Does digital legal marketing arranged in light of the OAB Code of Ethics and Discipline make it difficult to prospect for clients in the legal market? The objective of the work is, through a dialectical methodological line, comparing different eras and the evolution of the market based on historical events and demonstrating the importance of legal deontology and the differentiation between advertising and advertising in the new interpretation of legal marketing, highlighting the differences between marketing, publicity, advertising and the study of the precariousness of work influencing relationships, including communication in the legal market.