<p>Karenmommy~I can speak to NU, in that they were very accommodating with double/triple majors. The MT program is audition based end of Freshman year-as you probably already know. Your son will need to apply to the School of Communication as a theater major, and add the 2nd/3rd major from there-as it is very rare to do it the other way around due to class size limitation.(50 male/50female).
I hope this helps-
APOL-a Mum</p>