It'll be shutdown, it's a horrible idea. You go to hotels with girls after actual parties, preferably to have intercourse. Learn the rules of partying, my friend.
5 18's? why not just buy 30's? Also, 10 people is a lot for a hotel. Unless you are some kind of baller who runs shyt, I wouldnt recommend it. If something gets broken, you have to pay for it. Do what you gonna do homeboy.
Hotels have cameras in their hallways if it's a decent one. They see ten 18 year olds going into one room.. the cops are knocking on that door. Happened to me many years ago. "Where's the alcohol, we're gonna tear this room up if we have to" etc.