I know a lot of people are going to disagree with me but I have to say it.
If you are put on the waitlist at any school (but especially private ones) make yourself stand out. I dont know if Marq is private or not, but it doesnt matter. Send emails, make phone calls, and by all means VISIT the school. Once you visit, you can tell them how much you loved the school, and how impressed you were by their facilities. Lobby for your acceptance. I know it sounds like your sucking up to them, but hey, if you have no other interviews lined up, do whatever is necessary to get those brownie points.
I'm sure some people out there are going to say "you can lobby all you want, it wont make a difference". My motto is, it cant hurt. The school wont resent you by it, so you might as well do it.