Another question: can we try to nail down Voldemort's body-management strategy (for lack of a better term)?

I've been assuming that Voldemort possessed Quirrell shortly before the beginning of the Hogwarts school year, and the dark magic he used is only good for about a year before it "uses up" the possessed body in some sense. (Killing it, rendering it an un-possessable vegetable, something like that.)

But after thinking about this hard, I'm not so sure about that. Maybe the degredation in that body's condition is due to being in constant close proximity to Harry Potter, or something. Also, that may not even be Quirrell's body, Quirrell may be long dead and this is just some poor schmuck Voldemort decided he could pass off as Quirrell.

I assume Voldemort has a backup plan, in case his plans for Harry do not come to fruition this year.

Going back in time, what was going on when Voldemort was also, simultaneously, David Munroe? It seems he was planning on using the Munroe persona for many years, so he can't have used the same method he used for the Quirrell-body. What if the Munroe body was his original body, and he was just counting on years of aging to prevent people who knew him as Tom Riddle from recognizing him?

We may safely assume Voldemort used different facial features for Voldemort and Munroe. I don't know if it's been explicitly stated in HPMOR if Voldemort (as Voldemort) was disfigured as he was in canon, but it seems likely. However, I doubt the disfigurement was an unintentional side-effect of dark rituals, as in canon, because Voldemort had no trouble appearing as Munroe. More likely, it was a deliberate choice, to make the villain he set up for himself to defeat as Munroe as evil-looking as possible. One possibility is that this was not a second body, but the same body as the Munroe body, shape-shifted.

I assume what happened on the night of Harry's parents' death went exactly as planned for Voldemort. While Voldemort could have been betting on his ability to resurrect via horcruxes, it's not clear what going there would accomplish. More likely, he either (1) did not die (2) sort of died, but already had a second body ready to go so he wouldn't have to waste time gathering his power to resurrect.

If he had two different bodies for the Voldemort and Munroe identities, it's possible he kept the Munroe body in reserve upon retiring that identity, deliberately disposed of the Voldemort body shortly after or as part of whatever he did to Harry, and then went back to using the Munroe body secretly as he prepared for Stage 2 (to be executed when Harry became old enough to attend Hogwarts.) I wonder if the place he goes when he leaves the Quirrell body is back to the Munroe body.