My Mom’s American, but I grew up abroad.
Overseas voting is easy, but there’s one grey area. And this is it: children of US citizens who have never lived in the US.
A number of states — 17 at last count — clearly allow such children to vote using the last address of their American parent(s). The rest of the states are silent. They don’t say one way or the other. So, what should you do?
Go to VoteFromAbroad.org and request an absentee ballot using the voting address of your American parent(s). In the comments section, explain your situation. Wait a couple of weeks and call to see if they received and accepted your request.