.- Show them listings or HUD's of recent deals you've done to prove you might bring repeat business (If applicable).- A lot of the trouble is finding a good, professional contractor that will STAY good & professional.

The husband who blocked about filling out his own application, has a credit rating of 660.Are they considered two equals one and 751 credit rating meet the requirement or do I look at both credit rating separately?

I typically have a responsible executive of the company (President, CEO, CFO, etc.) fill out the application and get approved.

For instance, as an Owner/Builder, you must pull the permits, and this instantly makes YOU responsible for the satisfactory completion of said permit, and you also must know applicable codes.If one of your Subs has an employee that is not completely legit, then that falls on you as well, and you might not have even known about it.....!

You're saying that practical applicability only shows (has proven) that will only be profitable after a decade? 

This is my first time as a landlord screening applicants.

This is most commonly done in multi families but applicable here also. 

I took a look at the Miami STR zoning map from the Airbnb website and saw that the property that I'm about to purchase is in a zone that as "Short Term Rentals Allowed in accordance with all applicable State, County, and Local regulations." 

The uncodified law of the State of Alaska is amended by adding a new section to read: APPLICABILITY.

By rich I mean they completed an application, paid the screening fee and we show that their income is sufficient to cover all of their own expenses plus pay for rent and any damages at the unit we are renting their child.