I’m finished with all parts of my application, and could very well submit it this weekend after a few final tweaks to the resume and essay. However I’ve been holding out on submitting it because I’m waiting to run for president of a club I joined last year. If I submit my app now, it will just show me as a member, and I’d like to have a presidency position, of course. But I’m also worried about waiting because I have to apply for housing, and with that, sooner is better… Should I wait a few more weeks to get the presidency position or submit my app now to get better housing choices?
You can always call admissions later and have them add a note to your file (that you got the presidency position). Otherwise, I wouldn’t worry about it to much. If you end up with a roommate with an earlier housing date, they can “pull” you in when they select a room.
Just don’t miss the 11/1 deadline! 
Good Luck!