I think the recommendation to get a lawyer involved was due to the gross mishandling of this entire issue. First they recommended a $28K engine replacement. It doesn't appear they even performed any basic troubleshooting...i.e. the lack of compression / leak down test. After you brought this to their attention they then replaced the valve seal gaskets which, apparently, they didn't do properly resulting in damage where none existed before. Now they leave your vehicle outside exposed to the elements (seriously...there's snow on that engine, or is that frost?). I'm with bmw540san in that it might be time to get a lawyer involved. Give them an opportunity to fix it at their cost. If not start looking for a lawyer. I could do a better job than these guys (and that's saying a lot).