I'm not sure if this is the right forum for this question but someone is bound to know the answer.....

My roommate is throwing a big Halloween party tonight in my apartment, and inevitably there will be underage drinking going on.

Now he bought all of the alcohol, he invited everyone over, ect.

However I am also 21 and my name is on the lease, and the landlord came over today (she is pretty chill but still) and said she heard there was a big party going down in my place tonight and if she got one noise complaint she'd be over with the state police.

What are my options?

If this party gets busted am I in trouble regardless? What if I am not home when the cops show up? Does that make a difference?

I can't afford to get in trouble over something like this --- party is tonight at 9:30, please advise!!

Thanks