Hi, I am currently in Gr 12 and got accepted to Mcmaster. Does anyone know when the residence/roommate assignments take place? Is it arranged when all prospective first years accept their offers on June 3rd or is it arranged as soon as you accept and register? I'm so confused help me!!!

I believe assigning happens after you pay the fees and confirm your acceptance.

They can't arrange it as soon as you accept and register because not everyone will have registered yet...they can't run the matching algorithm. It's definitely sometime in June.