Airline guy giving advice on helos be careful. Many fixed wing drivers think you can stop at 6000 feet directly above a parking lot and descend vertically down to your spot in the middle of a large city.
There are many laws concerning where you could or could not land and NO, you cannot descend vertically from 6000 feet. Make sure you are precise about where and how you perceive you would use it and run that past guys who operate helos and know your local area.