My best worst idea ever

Wait, you're going to a haunted place, and you're worried about legal issues?

just go for it. worst case scenario if you do get caught trespassing the worst you will end up with is a fine, assuming that you don't vandalize the place in the process. simple trespass where i live is a $77 fine. as long as you go in while the building is still open they can't get you on breaking and entering. take a video camera with you. i'd like to see if you come up with anything. a friend of mine lived in a haunted house when we were in highschool. we saw a lot of creepy stuff there. of course there was always a lot of lsd involved so who could say for sure.

I'd say go for it as well, even though I myself wouldn't do such a thing because it would scare the crap out of me.

I want to know if it's really haunted or not. Things like these are almost always somewhat intriguing.

Sounds awesome! I'd do it. It sounds fun, specially because you're with your friends.

if theres no cameras then do it...just hide when they lock it and hide when they open it

dont get yourself noticed throughout the night and its all good