Where were you born? If in Costa Rica, you'll need your birth certificate authenticated by the Dominican authorities there (there is a Dominican Embassy in San José - email:
embdomcostarica@serex.gov.do). If you were born in the US, the authentication should be done by the nearest Dominican Consulate to the place where you were born.
The steps to be taken are the following:
1. Petition to the Minister of Interior.
2. Affidavit prepared by a Notary Public in which the applicant states his wish to apply for Dominican citizenship.
3. Birth certificate of the applicant, authenticated at a Dominican Consulate and translated into Spanish by an official translator.
4. Birth certificate of the applicant’s Dominican parent (if he was born in the DR, you will obtain this in the DR without any need for authentication).
5. 4 pictures, 2 x 2 inches.
6. Application and newspaper fees.