Today's interview went much better than yesterday's. It is a smaller, start-up firm and seems to be a really great environment. But apparently every firm that I have interviewed with stems from the same great tree.
We'll call that tree C & T. I actually had a co-defendant who worked for C & T and mentioned all of the offshoots (groups of partners and associates who left to form their own firms) from that firm. Apparently Old Firm was an offshoot from C & T from long ago (maybe 20 years). The firm that I received an offer from was a more recent offshoot from C & T (maybe 10 years ago). The firm that I interviewed with today was an offshoot from C & T about 1 year ago. Even one of the named partners at the firm that I interviewed at yesterday started at C & T.
So, since all of these partners started at the same place, they all know each other. This actually seems to be a benefit for me. First, they are familiar with Big Boss, so I don't really need to say much about why I was leaving. And second, the fact that I was working for old firm and left on my own, plus I had an offer from the other firm seems to provide me with a layer of respectability. I've already been through the vetting process.
Anyway, hopefully something will work out.