Thank you @Mike9241 . For practical purposes on domicile, is it the case that the individual determines the date themselves within the confines of reasonability?
In this case, I had an apartment lease in PA through June, closed on a house in April, moved my possessions in waves during that period, slept at both locations, etc. If there is no hard set line in the sand date beyond those criteria, it seems to me that as long as its a reasonable estimate of when Delaware became the "primary base of operations" that it's not going to be put under scrutiny, but let me know if I'm off base here.
As to your final question, I have had a Pennsylvania employer for years. I bought a house in Delaware but I'm not switching jobs. I commute a few times per week and work remotely the rest of the time, but 100% of my income is from employment in Pennsylvania, while I am now a resident of Delaware and have no residence in PA since June.
