Tax

Taxation at the national/federal, department/state or municipal level.
Corporate tax in general.
Tax consolidation regimes.
Taxation of nonresidents: permanent establishment, services, technical services, sales, leases, sale of stock and other rights, interest, royalties and other payments.
Inquiries with tax authorities.
International double tax agreements.
Wealth planning.
Refunds and offsets.
Tax audits, including negotiations with authorities.
Administrative appeals.
Defense in court.
Injunctions and similar constitutional appeals against laws or official acts.
Competent authority procedures and arbitration.
Lobbying for the enactment of new laws, regulations or rulings.