I personally wouldn't consider Mesa a vacation market and the main street corridor has always been known for being a C grade area. 

-John  My favorite C-ish areas are probably Old Brooklyn, Brooklyn Centre, Clark Fulton, Elyria, Lorain and all of 44111.If you haven't seen it already, I suggest reading The Ultimate Guide to Grading Cleveland Neighborhoods for a look at what, will buy you what, in each of the Cleveland neighborhoods.

Neighborhood grade, rental rates, does it need any repairs.

For example, I’m in the DC area and footings are required to be 30” below grade.

These will be for workforce housing, low/middle grade finishes and the work is primarily cosmetic.

I'd grade the neighborhood as C+.   

Dropped out of school in the 6th grade, due to the fact that he was partially deaf, not "slow" as perceived by the school.

so you have a flipper that specializes in investment grade sfr's and flippers who do owner occ.

@Christopher JacksonI’d ask:- their experience helping investors- how do they run the numbers on investment proeprties- ratio of investors to personal home clients they work- what is their goal in helping you- what are some local price/rent ratios— how would they grade those locations- what are their recommendations for you going forward- do they think your strategy is possible to executeThis should give you some sort of feel, if they have any idea what their doing and if they have systems to help investors specifically. 

Grab yourself a nice single family house on an FHA loan in an A-neighborhood and then buy some B-C grade multi's with 25% down.