I set expectations up front to make sure we're on the same page and discuss my communication and work style too (I'm very direct, its a NY'er thing, and that doesn't work for some people.)  

These sites have very generic and do not take into consideration things like, building codes, zoning requirements, light and air requirements, site orientation, utilities, soil capacity for foundation types, etc.

@Ahmed Nijim the thin planks are coming back into style.

I understand that you want to find the comps in the area and you want to take the average based on the closest proximity to your home and style.

Since everyone's communication style is different and what they value can differ; every investor will have a different experience/response to each lender. 

You need to find similar properties in size, style, number of beds, baths, lot size, amenities. 3 active, 3 recently sold.

I managed a large complex for many years that was a dormitory style, 6 bedrooms in each unit— I felt like I was putting fires out all the time.

You can probably save more by downsizing  your present rental situation and live a more frugal life style as a tenant that as a home owner.

Do you want suburban, transit oriented, downtown locations? 

I think you're on the right path and your eagerness/action orientation will treat you well... and the universe will (eventually) tell you if you acted on something without enough due diligence.Go get after it!