Age specific criteria might also be a good idea.  

We also give all new tenants, regardless of the age of the building, the EPA booklet "A Brief Guide to Mold, Moisture, and Your Home".

They might ask you to get a verification from you lender, which shouldn't be an issue unless your lender wants to be a pain in the rear.  

We require the ID verification of an individual (vs. a business), but business checking accounts can be used to collect rent payments.

But it all depends on the age of the homes, size of the homes, and the rehabs that you do......Still, if you can get to gross monthly profit, then you should easily be able to get to Net.

Learn how to compare properties (types of properties, size of lots, age of house, what types of finishes each has inside, etc.)

I wish you all the best on your journey and I wish I had the sense to pursue REI when I was your age now ;)

Meet some local investors that are around the same age and same experience as me and some that are a little bit further along.

Sounds like you're in a great position for your age. 

Personally, if I were to assume ownership of a rental property tomorrow, I would do a criminal background check, employment verification and determine whether or not the potential tenant(s) have ever been evicted.