Two words: Lawyer Up.
I have a local attorney that has helped me out on a few occasions when stuff like this pops up. I used to buy and sell storage units (long story and will go off point of this original thread post) but the idea is the same. Always check your local laws out to ensure you are doing nothing wrong, pay the 30 minute or 1 hour fee for "legal advice". Around me 1 hour max has cost me $100. That's saved me some very restless nights of sleep and ensured some serious peace of mind as well.