Screening 30 tenants in short order is asking for trouble.

Remember when it rains it pours... in other words, occupancy will dip and in conjunction with higher expenses and lower/flat rents so its not just one metric moving. 

They are flat to declining, these are up and coming tech areas.

The wifi is what will allow you to access the door remotely.If you don't want wifi on it, Then you can still get a smart lock you'll just need to pre-program several different codes into it, and then give out those codes appropriately but you'd need to be on site at the door itself to program initially or update it.From personal experience I find the touch screen or wifi locks to be complete POS's that are not reliable and the battery does not last long.  

I'm a little concerned that someone local may be more prone to having lots of guests in and out.Do you advertise (in the listing or in screening conversations) that you're specifically looking for traveling professionals?

General question about smokers - Can we charge a flat annual fee to a smoking tenant to run an ozone machine?  

Go to BUILD YOUR TEAM at the top of your screen, and you can search for other MEMBERS or LOCAL MEETUPS.

Look up Top Golf, there a few locations in Phoenix. 3-4 stories tall with GPSed balls so you can see them on a TV screen that is in each bay.

Is there anything I can do as a  due diligence to screen them? 

When it comes to properly marketing, screening and maintaining a property the cheapest route isn't always going to be the best route, if you have any questions feel free to reach out!