In effect, you have shielded your rental portfolio from the undesirable tax effects of your flipping business.Separating the two practices with entities also has important asset protection benefits – if the corporation gets sued, only properties within that corporation are subject to a judgment, if you conduct yourself properly.Installment Sales ProhibitedWhile investors can do installment sales, and only pay taxes on the money as they receive it, a dealer has to pay taxes up front on any income due from an installment sale.

I am about to conduct my first move out inspection.

Obviously I'm going to conduct inspections, but are no sellers disclosures in and of themselves a red flag?

I've learned to get a full credit report and review the collections & 30,60,90 lates as these indicate how this applicant conducts business. 

The due diligence fee is exactly what it sounds like, it is a fee that the buyer pays for the sellers inconvenience of taking it off the market (effectively) while the buyer conducts her due diligence.  

Besides checking out each unit or property to further access any and all expenses and talking to tenants to see if they have any issue recurring issues, Is it possible to conduct an initial financial analysis of the portfolio below with the information I have below? 

As long as there is no other business conducted by your LLC, as Dave said, you can just add the LLC as an additional insured to the policy(ies). 

The Sheriff's office conducts a title search to remove any clouds. 

But if the call is for the sole purpose of conducting a survey, it is exempt. 

I'd guess 95%+ of folks who call themselves a 'wholesaler' never conduct a single transaction, ever ...