If there is one clearly identifiable reason why I withdrew from Canterbury, it was over the issue of its doctrine (increasingly questionable) and authority (apparently non-existent).
Out of curiosity, I have asked our contributing editors to offer their thoughts on the issue of authority in the Continuum. This first observation is from Fr Matthew Kirby. Your contributions are welcome.
The Affirmation of St Louis supplies the answer regarding historic sources of doctrinal authority: Scripture as interpreted by the consensual Tradition, particularly as expressed by the three Creeds and seven Ecumenical Councils.
As for a present living authority, because Anglican Catholics do not believe they represent the whole Catholic Church, when we defer to the Ordinary Magisterium we look to the consensual teaching of the bishops of the RCC and EOC, as well as ours.
As for the Extraordinary Magisterium, Anglicans have, ever since the Elizabethan Settlement, accepted that a truly Ecumenical Council received as such by the Church at large would be authoritative. However, we have not seen those Councils called Ecumenical by the RCC since the E-W schism as necessarily being so. Nevertheless, it may be that reception by the rest of the Catholic Church could manifest them as so in the event of re-union. The precise nature of the role of the Pope in the Extraordinary Magisterium is unresolved as yet in this ecumenical context. I do not believe this issue presents insurmountable problems, but that is personal opinion.