I got a similar but different question.
What if I quit my software engineer job after getting my first admit (not my top choice) and do an pre-mba internship before getting the result from other schools? Will that negatively impact my chance of admission to other schools?
Assuming you would go to school this year no matter which school you ended up at... I wish I had done this. I wasted six months twiddling my thumbs when I could have tried to put something together first.
so I am assuming your answer is it's okay?
I am definitely going to an MBA if I get accepted. Even if I don't get accepted to any I plan to leave my current company because I am not learning anything anymore. If I leave, is this something I need to notify the schools about? I don't want my departure to hunt me later when school do the background check and learn that I left my current company.