Preparation of opinions and answers to consultations about questions related to federal, state and local taxes.

• Presentation of defenses against reports of infraction to the authorities and administrative courts, with preparation of briefs and oral defense at the superior administrative courts;

• Litigation at judicial levels, including superior courts, with preparation of briefs and oral defense at the superior administrative courts;

• Preparation of consultations to be addressed to the competent state bodies about the interpretation and application of the tax law;

• Advisory services during tax officer inspections. Production of information analysis of interest to the tax authorities;

• Studies and opinions on tax criminal law.