I still think its worth checking out - for free that is.
Yes, my grandmother was still German when my mother was born because my mother's name was on her last german passport (which may have helped). But from the way my story was received by the consulate staff, it didn't seem to matter who was what and born when - only that someone was german, enabling me to be german as well.
Your guess may be right, but as it stands, I am the only current German citizen in my family. Even though I used my mother's eligibility to get my passport, she isn't a german because she never filed a request.
Honestly, I think you should go to the office and ask them. I walked in with only questions and the story of my grandparents moving from germany after the war. The man said: Bring back something that proves one of your grandparents was at one point german, (plus all the other stuff I mentioned in my first post) and you will have it.
Happy Travels,
Olivier




