certificado de domicilio

Anyone know the easiest way to get a Certificado de Domicilio? I have heard some different things and read different things and don't know if they changed. Do you still have to go to the police station? Someone told me you can do it online. Any help would be appreciated.

Today, I visited the federal court (juzgada federal) to inquire about the necessary documents for applying for citizenship. The experience was surprisingly smooth and welcoming. Upon entering, I was warmly greeted by a friendly woman close to my age, who seemed knowledgeable about the process. I...