Like if you're self employed and don't have every line of your tax returns memorized, then yup paperwork is needed.

He said they let the current strip landlord and restaurant tenant slide, but the new owners will have to pave the empty lot behind the strip to provide more parking.

You could make use of weekends or if your employer will let you you could ask to work 4 days a week.

The employer (medical company) actually pays for housing and the lease for my property would be with the medical company, not the tenant themselves.Given that, I'm trying to figure out which background/financial checks are relevant. 

You'll still need to do the proper research and employ other strategies such as asset diversification and risk management if you want to maximize your returns.

The other was a mixed use commercial we 'stole' for $50k cash, It has 3-4 apts, offices, a warehouse, a paved lot for 8 trucks, 8ft fencing complete with barbwire. 

My guess is that if these gurus say they have had legal reviews of their materials, it was to CYA themselves and not as to the stuff they produce.Ideas are fine, understand too that in real estate, there is nothing "new" it will always be basic strategies, approaches or tactics employed regardless of the name something may be called at any time.

Your company will appear as their employer.

We ended up working out a buyer's lease for a month because the mortgage company required one month's pay from that dealer to establish employment as I was commission based in the service department.

The roads are getting paved and schools are getting their books etc.