I use a factor of 6 units to 100 population.

You cannot compare the results, and this is the most important factor, in my opinion. 

This effectively enables me to raise capital at 8% per annum, interest capitalizing, term forever.

Early Financial freedom will forever elude the person earning a middle class income, but who is unwilling to do some combination of quitting their job for something much higher risk/reward, like starting a business, drastically cutting back on expenses, etc.

Can this be a factor to use to negotiate the rate down? 

You'll save a ton of time having the majority of the information you need in one place and you can sort and build property lists based on hundreds of factors.

The price is right about the same when I factor in the additional numbers Readymode uses vs the one line Mojo says I need since they get your number whitelisted.They both dial multiple numbers at once (possibly more than 3 as to what Readymode says) but I like the add ons and unlimited skiptracing Mojo offers for $49/mo

Air Conditioning, if an city is hit or miss with A/C units does this play a large factor on rent and/or property values?

If you have been doing real estate forever does that mean that you are doing it wrong?

Mitigating factors, this is a suburb where occupancy rates are high, rents are growing, and multiple innovation-based businesses are attracting young workers to the area.5) Are YOU investing in this deal?