1. Tax rate percentage for transferring real estate in Brazil varies depending on the location and value of the property, but generally ranges from 2% to 6% of the property's assessed value.

2. The tax rate for renting out a house in Brazil is typically 15% of the rental income, although it can vary depending on the location and value of the property.

3. The top 5 most popular regions to live in Brazil are:

- São Paulo: Brazil's largest city and economic hub, known for its high standard of living and vibrant cultural scene.

- Rio de Janeiro: Famous for its stunning beaches and iconic landmarks like Christ the Redeemer and Sugarloaf Mountain.

- Florianópolis: A beautiful island city known for its pristine beaches and laid-back lifestyle.