I'd approach the prospect and find out if and when they are accepting bids. At the same time try to find out if they are happy. If you are really good you'll get a property manager to do a walk thru on the property ( you should all ready have done this by yourself. Looking for trouble issues) and discuss trouble issues and how you will address them.
MAKE sure you have the proper insurance of you want to run with the commercials It's a requirement at some if not all