The cost of living in Brazil is expensive! Right now yes! 3, 4 years ago, no!
Some items cost 3 times more than US/Europe.
There are much cheaper places for living in Latin America where RE and ROI is just as good or better. Brazil is not the end to all means. Travel around LA and see for yourself, who knows.... you might surprise yourself and move out of Brazil.
To Travel is to Discover..... 