This is indeed possible and has been successfully executed. However, for the time-sharing agreement between “A” and “C” to be valid, it must specify non-overlapping schedules. After your time-share proposal is approved, and the other applicants are subsequently dismissed, you’ll need to await the finalization of those dismissals.
No, it is not required.
However, it’s important to note that organizations established less than 2 years (720 days) before the LPFM window’s closing date will not be eligible to claim the “established community presence” point. Consequently, their application will only be able to earn up to 4 points, putting them at a disadvantage compared to the 5-point applicants.