(Unless you have connection with one that can get you info prior to closing.) 

I should also note that I gave the tenant a formal move-out checklist prior to her move-out date explaining that if the rental unit and outside area is not appropriately cleaned, that a cleaning fee may be charged to the security deposit. 

What to look for, where to look and any way that I can check the condition of the slab prior to an official inspection.We will check into the condition of the soil (Clay, Sand etc.) and any noticeable wear and tear on the outside but prior to inspection, are there any red flags I could look for myself or any questions to ask?

Making demands prior to signing a lease is a very bad sign.

This compares the full amount of the most recent mortgage loan(s) to the current market value of the home.

@Freddie Williams - Typically I see banks wanting 3 months of stabilized rent prior to the refi. 

House price is comparably higher than Maryland.

In general, there aren't too many instances where a C-Corp is advantageous as compared to an LLC, in your context. 

Everything gets put in your name.Only difference is that the prior seller carries the note instead of a lender.

@Marcel Acero Would be happy to answer questions relating to multifamily and comparing it to single family rentals.