Get a Brazilian visa. This will allow you to reside in Brazil for a certain period of time as a non-citizen.
Reside in Brazil for a period of at least four years. Don't leave the country for more than a brief period of time during these four years.
Become gainfully employed in Brazil. The better your job, and the higher paying it is, the better your chances that your citizenship request will be granted by the Brazilian government.
Provide a letter of introduction to the Brazilian consulate. This letter of introduction must be from a current resident of Brazil who recommends you as a good prospective citizen.
Learn to speak Portuguese fluently. You must demonstrate that you can read and write Portuguese fluently in order to be considered for citizenship in Brazil.
Make sure your taxes are all in order. If you owe any back taxes to the Brazilian government, your citizenship request will be denied.
Provide documentation that you are in good health.
Prove that you have not been sentenced to any prison terms of more than 1 year in any other country in which you've resided.
Fill out the appropriate paperwork and file it with the Brazilian consulate.
