Rental Properties Spinoff: Should you LLC?

Thought a separate thread was better than hijacking the other one, but what does the Money Board think? I have a few different rental properties but they're not LLC's - just all owned personally. I do have a million dollar umbrella on them in case of personal injury however and was waiting until I had about 4 or 5 before I set them all up as an LLC. I recently was speaking with some closing attorneys who suggested putting each one in it's own LLC to protect yourself against any liability but other articles I've read say if someone gets hurt in one of them, the LLC wouldn't really be able to protect you anyway.

I guess I'm just curious if anybody here has multiple investment properties, how you have them set up, and why...