my_hat_stinks

Very unlikely, but that was one argument the no campaign tried to make last time. It’s a solved issue, there’s already a land border between the UK and EU in Ireland.

That’s much less clear, that would likely be sorted out after an independence referendum. Crown assets will almost certainly be divided in the same way as all other government property, however that ends up playing out. In my opinion it’s more likely than not that the monarchy would still be recognised to some degree. Anecdotally there’s far fewer royalists in Scotland than England so there’s also a reasonable chance they’re scrapped. There’s a notable portion on the population who see the monarchy as parasites using taxpayer funds to live lavishly, it’s difficult to argue against that.

Likely yes, it would be a relatively smooth transition into the EU. Scotland was part of the EU for a long time and a big part of the no campaign on the last referendum was that Scotland would risk it’s EU membership. Scotland also voted strongly in favour of staying in the EU but was outvoted by England.