Re: @ Dabbsy
"unfortunately Germany doesn't allow dual-nationality"
To be pedantic, lots of countries don't like dual nationality, and will make a big deal about you giving up your old nationality, but it's legally almost impossible for them to do so.
In general you can't ever not have a nationality, nor renounce your current one if it's your only one. There are some odd exceptions, but in general that's the case.
When you gain a new nationality, one of two situations occurs. If your current nation won't allow you to gain another one, then you gain the new one, then lose the old. Otherwise you keep both. You can then choose to give up one of them. You can also have one taken away by the nation it belongs too.
But at no point can nation A remove the nationality of nation B from anyone. Ever.
The Dutch are even more picky than the Germans, and they admit that, legally, if I'm granted citizenship that I cannot be made to renounce my current nationalities (British and NZ).
Actually getting nationality is slightly more tricky if you don't actually live in the country.
According to the draft agreement, anyone who has been in another EU country for 5+ years gets permanent residency (ie nationality less a few bits) immediately upon brexit. If less than 5, then keep current rights, get residency after 5.
I'm also 99% sure that if the Dabbs household moved to the ancestral home of Mme Dabbs, then Dabbsy gets to come with, and gets to live and work while accumulating the 5 years. Same for children. Exactly which blood relatives are something that is in the haggling details.
The actual agreements are well worth reading. The UK stays in the EU, follows EU rules, agrees to pay an appropriate contribution and the ECJ is the top court still. But no votes. Even knowing some of the finer haggling points, I don't actually see what the UK has gotten out of this, other than moving the deadline a couple of years down the road.
Oh, and for the fuckers who tried to pull this shit off, I don't think it's worked. The anti money laundering stuff is part of the deal, including full details of all beneficial ownership.