Brexit will have a financial impact, but I don't believe it will be what everyone thinks it will be. The UK will likely have forgotten the 'light touch regulation' that in part caused the credit crunch, in the chase for bringing business to London in the mid 2000s.

History will probably repeat itself: the current, or next Government will reduce regulation to encourage businesses to stay or locate in London. Banks will exploit it somehow. Cue next financial crisis.