This is why I suggest not giving two weeks notice when leaving a job for another. Instead send a resignation email the morning you start at the new company. This seems fair and reasonable given that companies are willing to pull offers.
I'm not sure which part of the world you are in, but for example in Europe it is common to have 1 month as a minimum notice period, and not uncommon to have 3 or even 6 months (this latter usually if you stay at a company for a long time). It is also common in certain countries to either get a "reference" letter from previous employers or provide a reference about a person in email or on the phone - going back to 3 o…
Hum... If you are on the middle of your life, with all of the responsibilities of the world, this becomes more important, not less.
Get your suitcase and move there, then slowly detach your responsibilities from your previous city. Doing it beforehand just adds a lot of time when everything will break.
Yes, it's hard. The other way around is hard too, and way more risky.