Commercial is a different animal from residential.

If I know they take care of the unit and I can turn it around quickly, I'll have the old tenant move out by x time on the morning, have my whole crew of guys bang it out like animals, and allow new tenants to move in late in the afternoon that same day. 

Any suggestions for a good ONLINE course?

You might be able to discover who that agent is by looking at local listings online and have a chat before committing to a trip there. 

I found this site while doing some research on various real estate deals online.  

It's an 8-hour class and it's on-line, you can review it as often as you want.You're going into business.

I personally prefer classroom vs online courses if your schedule permits.

@Chris Jurgens the values you see on line are not a realistic way to assess what the property is worth in Dayton. 

As Wayne said, you can find a good bit of info online, and by talking to the building dept to see if there are any open cases.

You can look online and see if it is listed yet, until it is there is not much you can do.