Hi Tulio,
I am not sure with your idea. So i would like to remind you that OS Property only supports 3 location levels. They are: Country > States > Cities. So we can't add lower location level like Country > states > cities > neighborhoods
But, if you want to chang State to City and City to Neighborhood, it's all ok. To implement it, you can open the OS Property package, folder "other > location", you will see file: br_brazil.txt
Open it by Notepad, you will be able to modify the location data of Brazil as you want
Good luck
Dam