Er, how exactly did this happen? 7 cars?
Well the first two were an infiniti and a truck. The infiniti slid, apparently and made it into a parking spot. The truck slid into the front passenger side moving the parked car. The truck took off after leaving a note. Later my GF and I slid side by side. Last an SUV slid into the back of another car which then hit another parked car.
The accident was a result of the parking lot being frozen. There is an incline from left to right in the parking lot. As it was iced over, any car attempting to go that direction was going to slide right to left.
When I called the management answering service maintenance called me back. He said that they couldn't do anything and that this happened last year (which I never remember it happening). He said that they could have put ice melt on it, but that it would just refreeze so there was no point. I asked that they notify residents so that accidents wouldn't continue to happen or block off that section of the parking lot and he refused. Security and I stopped 6 or so more cars from attempting to enter that area. Security finally demanded that someone come up and address the issue.
I have attached a sketch. Keep in mind the lot slopes right to left.
The orange car got hit first and the truck took off.
Then my gf and I slid side by side.
The blue cars were all involved when the outside car hit....
Edit: Just talked to my insurance and lawyer. Insurance and lawyer agree that there was negligence on the part of the apartment complex for failing to address a safety issue on their property after claiming they knew the issue could exist. However, it is unlikely my insurance company will subrogate the damages to the insurance company because the damage amount won't be high enough to make it worth it.
I'm still not entirely following you (I don't care about the other cars), but I'm going to assume you were driving and slid into your GF's car.
Really, you're talking about premises liability and the concept of "reasonable care". Essentially, it's incumbent on a commercial property owner to make sure their property is safe. However, that's not absolute. They usually have to know there is a problem and have a reasonable amount of time to fix it. Furthermore, it must be something that can be fixed with reasonable care. Often property owners are given a wide berth when an Act of God causes a problem (and an ice storm may qualify as such an act). For example, you can't sue Best Buy because you were swept away in a flood when Katrina broached the levies in New Orleans. But a commercial property owner can't let an ice patch sit right outside his front door a week after an ice storm because that spot is in the shade.
There's no way for anyone here to say who is responsible, nor would I take the word of your attorney nor insurance agency (they both have their motivation to say that the site owner is responsible). I'll just say that both sides probably have a pretty good case.