I have to admit I'm not 100% clear on this issue at the moment.
On one side, the RA
has approved a bill to use Zarf's Nota Bene notary on subsequent deeds (putting the costs of its use in the upfront payment that a citizen makes on their land deed purchase), and slowly "paying back" the conversion of the old deeds to the new system from the Treasury. This was something that was approved but never implemented.
Secondly, since that approval, Nota Bene has become
de facto the "official" notary, since Zarf became an employee of Linden Lab. While this still means that all trust have to be deposited on the notary (the only person who would be able to forge signatures!), at least we know Nota Bene has "Linden approval". In a lawless world that has no authority beyond LL, this is the best a notary can expect to have.
Thirdly, Nota Bene is slowly creating a very positive reputation. The only thing that Zarf cannot provide is a legal framework to enforce the notarized agreements; but in Neualtenburg, we can! So it seems natural that the two come together at some point. I hope to be forgiven to quote Claude quoting me

but it seems that having both — a Linden-supported project and a legal framework — will give us the opportunity to compete successfully (since the competition is virtually nil) in the market for legal services.
Fourthly, I find it interesting to use the notary as a "bridge" between two interesting projects: one addressing in-world democratic processes (Neualtenburg), the other addressing off-world ones (Democratic Island). Unlike what some have claimed in the past, both projects are actually completely different in purpose and scope; but you might have noticed that we have a "common ground" (and common members!). Nota Bene would, of course, reinforce that.
On the other hand, we don't really
need the notary service. Nota Bene relies on proven technology and Linden endorsement to offer a service; we rely upon a legal framework instead. A semi-broken, 5-lines-of-code notary system is good enough for our purposes, and its cost is zero; admitedly, people who know how to hack the system are able to modify permissions (but they would be seriously breaching ToS and risking a permanent ban from Second Life), but, if we don't go to extremes, our system is good enough for our purposes. Like Sudane said, if it's not broken, why try to fix it?
Thus I'm a bit divided, but the truth is, the RA
has approved the use of Nota Bene. I think we should go ahead then, and place a notary desk in Neualtenburg as approved!
That RA meeting transcript also briefly describes that the City should try out Nota Bene, and after evaluation, we may reconsider our position if it doesn't satisfy our requisites. But for now — we should get in touch with Zarf!