Thank you for writing about this. Although my case is not Family Based (Employment Based), I hope that administrative processing will take around the same for us. I am entering the 10th month of wait in AP, after interview. BTW, not asking for myself, but I don't think you can have it handled by the embassy in Ottawa, can you? Montreal Consulate is the only center handling Immigrant Visas, right?
Anyhow, congrats, and all the best!