Thanks.
Apparently I should have gone ahead and signed a new lease as I had thought about doing, to add the Daughter to it. That would have happened after the new type of lease regulations became valid. As it is, my lease is still Short Assured Tenancy per the old regulations, as it was signed before Dec 2017. I have to give two months' notice.
Good and bad, that. I am really, with Covid and potential sudden shutdowns, a little leery about giving two month's notice with the plan that the removals company comes in the second month. If they suddenly can't remove my stuff, we're in trouble. If they can't remove our stuff and/or suddenly we can't fly home, we're in trouble once the lease is over. Aka homeless.
I was hoping shipping our stuff home would take as long (several months) as it took to get here, but the mover is quoting four to six weeks. Unless I want to pay an extra $750 to put it in storage over here for a month. And then hope shipping continues. The two-week quarantine in the USA is not helping with the logistics. Ordinarily I'd say we could find a place to live easily in a month, but two weeks is cutting it uncomfortably close. So I guess we'll give our notice, store our stuff, fly over and find a place, then have it sent on. Ideally I'd fly over and house-hunt, then come back and finalize the move. But with the the chance of getting refused entry into the UK, the six weeks of quarantine involved (two going, two back here, two more going) plus the added expense of quarantine hotels and rental cars, yeah, I guess we'll have to store it and then send for it.
Perhaps I'll inquire of the landlord if we can have a contingency to our notice - that should Covid-related matters keep us from properly vacating we can continue to pay to stay here. There are other vacant units in the block now and they have not been marketing them, so perhaps that might fly - better to have an over-staying tenant who's paying than an empty flat?