Since 2015, turning the dream of Italian citizenship into reality with premium service and no outsourcing.
Of experience in the field
Served in person
Practice throughout Italy
Brazil, Italy and Portugal
He earned his law degree from Universidade de Mogi das Cruzes (UMC) and was admitted to the OAB (Brazilian Bar Association) under registration no. 262.482. Registered with OAB/SP and with the Italian Bar, he specialized in Migration Law at the University of Siena.
In 2015, he founded the law firm Dias&Dias Advogados, focused on business, civil and international law. With extensive experience in Italian citizenship cases (ius sanguinis), he became an Avvocato Stabilito in Italy, practicing before all courts in Italy.
Tiago Dias was the only "avvocato stabilito" (lawyer registered with the Italian Bar) to take part in the hearing of March 11, 2026, which significantly changed the course of citizenship through the judicial route.
We are the Italian citizenship firm with the highest rating on Google, offering premium service and no outsourcing.
Dr. Tiago Dias personally attends to every client. You are never passed from hand to hand. No outsourcing.
We practice before absolutely every Italian court, from North to South. No geographical limitations.
The only Italian-Brazilian lawyer with a specialization in Migration Law from the University of Siena.
Dias&Dias Cidadania Italiana e Direito Internacional
Av. Paulista, 1765 - 7th floor
Bela Vista, São Paulo - SP, 01311-200
OAB/SP: 262.482 • OA Portugal: 61700P
Dias&Dias Cittadinanza Italiana e Diritto Internazionale
Via Bachelet 19, 81031
Aversa (CE) – Italia - NAPOLI NORD
Ordine Napoli: 3919 • CF: DSITLN82H07Z602Y • P.IVA: 18251571008
Book a free review of your case with our specialists. No commitment and no red tape.