Thanks for the response Trish, I just don't feel that a solution should take years if the issue is being taken seriously. A quick search within your Community Boards for '2FA' shows pages of complaints about this issue for all the different banks. Unfortunately these threads of discussion seem to be deleted and the issue keeps popping up again and again. 

I have no issue connecting the accounts initially using the method you've outlined below. However, as soon as myself or my bookkeeper (or QB scheduled auto syncing) tries to refresh the account feeds, everything is disconnected. The trusted device (my cellphone) will get 5x 2FA alerts simultaneously - 1 for each bank account, chequing, savings, VISA, etc. and this causes the verification to fail. Even if I just manually connected them minutes ago, refreshing the feeds fails every single time. 

The only thing that works is to sign into RBC, DISABLE 2FA, refresh the feeds in QB, then enable RBC 2FA again. This is not a reasonable solution for someone working with bookkeepers and accountants externally.