In order to get the legitimacy of my son , can I submit my marriage contract from another country?

Question

Do I need an authentication of our marriage from the country origin and from his embassy?

Answer 1

That is going to depend on the interest of the person, agency, or government entity to which you are trying to prove your son's parentage. In the U.S., for most interactions with government agencies, a birth certificate, affidavit of attending physician, mid-wife or nurse, or other birth record from the child's home country is usually required, but parental marriage documentation is rarely requested, except in custody cases.

Without more details, it's not possible to give a definitive answer. The best course is probably to inquire of the person, agency, or government entity with whom your are dealing, exactly what documentation you need to provide.