For instance, I have a deadline at 10/15 and another at 11/1. If I feel like on 10/20 there are some edits I want to make for the 11/1 deadline, can I do that? If I can, is it a possible that I edit the essay before the admissions officers get to read it, even though it’s passed the 10/15 deadline?
If you’ve already submitted the application, then you will not be able to edit the essay in that application (unless you contact the school directly and explain your situation, and then it would still be very unlikely). However you can edit the essay as many times as you would like before submitting it to another college.