I was going to edit or delete my post above about N350LH being left-hand drive. Apparently it is a regular ol' RHD Astar.
In discussing this accident on the HPN Facebook page, I was reprimanded by two people who evidently work in the NY market and are familiar with Liberty. They churlishly told me that 350LH was in fact LHD - condescendingly adding that a simple Google search would've revealed this information had I expended the meager effort.
...That information that now appears to be incorrect. For that, I apologize. Sometimes we get things wrong.
To A Squared: "DOC" means Direct Operating Cost of an aircraft - in other words, the knowable, predictable things you can count on in advance to figure out what the machine will cost you per hour.