Keeping a direct line of contact with the neighbours is really important IMHO. We want to make sure that we can send updates that are relevant for the neighbours only, and we want to make sure that they receive it.
Subscribing them to the general newsletter is not a solution to the above. In my opinion, it’s even a risk, because the general newsletter may not be of interest to them (e.g. high probability they’ll get annoyed with the emails about the presentation). If they would unsubscribe, we lose the possibility to contact them. Can you please taken my objection into consideration?
I agree that creating a landing page for the neighbours is a separate task. I wouldn’t overthink it though. Just 3-4 general sentences, a link to the Powerpoint we presented, a link to the neighbours newsletter and an occasional update should be enough.
If it helps, I guess @alberto and I can provide the text when we’re back from our break?