@Patrick Murphy
10 is too many in my opinion to go down to the neighborhood level, you have already done a ton of analysis so if it helps you feel confident I believe you've proven you won't get stuck in analysis paralysis. However, if you really think about it and you've got 10 metro areas that are all viable and are just a good as each other you probably need to up your filters.
When I did all this I took it in stages, initially had approx. 25, then looking at the next data parameters whittled it to 10, then 5 then 3. If you really go down to the neighborhood level, and to do so I recommend talking to PM's, local forums here and getting agent recommendations. Then talking to people: investors, agents, PM's, lenders, contractors, it's a lot. Going to that level of research from people in the market, 3 was a good number for me. I'd recommend you do 5 max but less would be better.
All the metrics in the world unfortunately don't matter much when you can't feel confident about a team of professionals you only vet over the phone. Building personal relationships will give you a million times more confidence than a spreadsheet and I'm a spreadsheet guy. Good luck!