Properly authenticated evidence of the claimed family ties, dependent on the situation
Authenticated marriage certificate;
Medical report certifying the incapacity, or the judicial declaration of interdiction/disability;
Decision decreeing adoption, duly authenticated; or
Authenticated birth certificate, and in the case of adult children under care, a document proving economic dependence and enrollment in an educational institution in Portugal;
Written authorization from the non-resident parent authenticated by the Portuguese consular authority or a copy of the decision granting legal custody of the minor son or daughter or guardianship of the incapacitated to the resident or their spouse, see the declaration; or
Evidence of economic dependence and family relationship, including transfers made to the country of origin; or
Decision decreeing guardianship, accompanied by a certificate of the decision of the national authority that recognized it, duly authenticated; or
Presentation of documents proving the existence of a common-law union for more than 2 years