Kindly note that all needed documents must be submitted to the German authority e.g. registry office or aliens authority (“Standesamt, Ausländerbehörde”). The German authority will then send the documents to the Embassy for verification. The list of the required documents can be found here: LINK

Individuals cannot request for document verifications. The request must come from a German authority eg. “Standesamt, Ausländerbehörde” (registry office or aliens authority).

The verification process can take up to 8 months.