Hey Beth... It's explained in the first post of the main gameplay thread, but I'll say it here too for people to follow better.
Jim Townhouse: Rooms 1 through 12.
Kermit Greens (KG):
Rooms 1, 2, 5, 6, 9, and 10.
Electric Psychadelics (EMP):
Rooms 3, 4, 7, 8, 11, and 12.
Don't forget...