Our delinquency and eviction rates have remained low do to the intense screening process!

Test multiple ads on craigslist, if you set a price and get a lot of results, your too low. 

After working under a broker a certain amount of years you can test for the brokers license.

Multiple quotes on jobs is the best test of a vendors.  

that way you build a little rapport with that bank, show your cash "lender" your intensions on how to pay them back, and also know exactly how good of a deal you have from the start.

Every area is good for rentals if you have the right properties and rent prices.There are areas, however, where I don't want to own rentals.That being said, Craigslist is not a way to test the strength of a market.

Once I get the utilities hooked up, ready to go and I’m ready to look for renters, am I legally allowed to ask for a drug test?

The main issue is you need to meet the substantial improvement test.

Assume that (in a given year) I'm a Real Estate Professional, and I've passed both the 750 hour test for my real estate activity and the 500 hour material participation test for a rental property I own and manage.

Managing a single STR in my opinion is not time intensive - all you need is a reliable cleaning person.I would not pay any company 13% of my fees to answer messages.