My IRA account finally rolled over, and is now closed.
In the time between ACH'ing the funds to STRATA and initiating the rollover, and Vanguard actually receiving the funds, I had accumulated $40 in recoveries, which was both surprising and annoying. At that point STRATA had officially closed my account, but I could still log in to my LC account and see the recoveries in cash.
What's clear to me is that STRATA and LC don't really communicate that well. After I finished the rollover, I contacted LC support to close my account, so I didn't get hit with the $100 yearly fee to STRATA. They send me a distribution form that was clearly going to be sent to STRATA. I contacted them again, pointing out that the account with STRATA was already closed, and if there was some other form or process. They said fill out the form anyway, and send it, which I did. So I should be getting a check for that $40 or so, which will be a distribution, but since it's a Roth there won't be tax consequences - just withdrawal of principal (which I will note on my Roth basis tracker spreadsheet).
I am now a little bit frustrated that so many recoveries were coming in (it was more like $10/month before this, so I figured not worth it to pay the $100 fee to get maybe $100 back over the next 10 months). But if it was $40/month...would have been worth it to pay the fee and collect some. Oh well, it's over now.