Once I have obtained the certificate of proof of my Sephardic origin, what should I do?

Power of attorney (Power of attorney with signature legitimation).
Birth certificate legalized with apostille.
Passport legalized with apostille.
Declaration of residence (other places where the applicant has lived).
Criminal certificates of the countries of nationality of the applicant and where he/she has resided more than 180 days per year. The criminal certificates, due to their expiration date, can be requested last.