The "deadline" is July 24 this year (I believe, or very close to it), but I've heard they're not very strict. My lease started in August technically (although I moved in end of July), and I don't anticipate it will be an issue, based on what I've heard from other students. You can't move in past August anyhow - orientation is at the start of the month - so you'll be fine.
It does vary, and they do reject people, but lots do get in off the waitlist, myself included.
Nononono it DEFINITELY is included - otherwise I'd be on the street 😛 They just don't include it in the initial loan award thing - they're basically recommending you take out less (so you're not maxing out your loans if you don't need to) by writing it the way they do. You will absolutely have enough to live on and then some. If you're confused, seriously, just talk to the fin aid people. They're wonderful and much more knowledgeable than me.
In general, they do a lot of admissions stuff non-chronologically, unfortunately.