I got to examine all the evidence and approve or disapprove the potential tenants.

You can play with the interactive graphs to examine all sorts of demographic changes, and "Lexis Nexis Crime Map" works great for my area for examining crime statistics.  

With the wealth of online out of state data readily available to buyers how can I promote myself as the go between to examine/survey out of state properties of interest, conduct the deal as the buyers broker while acting as a discount broker for out of state buyers?

If you are self-employed as a consultant, you should seriously examine a Solo 401(k) plan, which allows for very considerable tax-deferrals and/or Roth contributions.Your question is not an either-or. 

I have mostly all my Real Estate certificates and I'm prepared to take the state exam in a couple of months, but I would like to start investing and wholesaling first.

Examine the detailed financials.

If you look at just a few properties there could be all sorts of reasons for the price difference but when you examine all the comps and you see market rate for a BR is close to $20K but the appraiser is using $5K it makes apparent how unskilled many of the appraisers are (not all).I had an appraiser once that used a $10K upper on a duplex versus a triplex. 

NO clue in your state its state specific  and can be county specific and city specific.. suggest you talk to attorney familiar with these.or talk to title companies title examiner if you can get one to talk to you

Or are the income and W2 payments examined on a business-by-business basis to determine each pass-through's eligibility for the deduction? 

The other option I'd really like to examine is flipping houses in the Western Geauga area, which is closer to home for me.