The last 5 years has been atypical with the credit markets and such where FHA was either competitive with conventional loans, sometimes cheaper than conventional loans and unfortunately at times, the only choice for a mortgage.Each bank has their own underwriting standards since again, they are the ones lending the money.  

Lots of other choices as you get around the city and north as well.Had a similar start to you.  

I think your smart to run your own numbers just to be safe.

It was a bad choice since airbnb uses the word superhost for something else. - I hired a english teacher from Brazil to reply to my airbnb / schedule my cleaner.

The contractor will view his labor as free, I will charge him the monthly to buy the property on a rent to own AT FULL MARKET ARV PRICE, what choice does he have, his credit sucks. 

Im looking to BiggerPockets to learn the ways of real estate investing, be smart with my savings, and invest it in the right deals. 

Another business form may be a better choice if you plan on having investors, want to fund the entity with retirement funds, etc.It is wise to seek advice of local counsel to determine what the best form is for your goals.

I had to purchase it, no choice.5. 20 Unit - The owner of the 12 unit above told me a broker had contacted him about a 20 unit building for sale and was I interested since he wasn't interested.6. 17 Unit - Broker for the 20 unit deal called me and said he had a pocket listing for the 17 unit deal. 

Any suggestions besides smart move for online background checks?

Doing quality diligence requires very smart people who are experienced.