Hello,
I got married in Brazil and acquired my RNE - permanent residency based on marriage. It will expire in 2027. I got divorced after 9 months of marriage, so from my understanding, unless my ex goes to the policia federal and cancels my permanent residency, I can keep it. However, what do I do after it expires? Is it possible for me to become a naturalized citizen if I live in Brazil for 4+ years? Thank you for your help.