Nothing wrong with being straight up with her. Ask if you can sit down and have a pow-wow, 10 minutes of her time. Be polite. Explain your legality, show her your paperwork, offer to show her the setup and explain that you are trying to be 100% legal but that if she truly wishes them to leave than that is her choice and you will comply. (Unless you have a pre-signed agreement acknowledging the grow from the get-go.) Now, if she still says nope I want you out, then simply ask if you can have X amount of time to finish up and break down the gear. Explain that you will gladly leave, but X amount of time would be very helpful to finish up as per the needs of the patients involved. Hell maybe even ask her if anyone she knows is in need of some medicine...sounds like she is! =)