For example if home price average in the neighborhood goes for $200 do you just pay $200 and just try give less down payment or do still try subtract 10% to the $200 which is $180k and try to give a less down payment?

I own 4 properties (3 duplexes / 1 fourplex in B grade neighborhoods) in cash.

Just back from my first tour of neighborhoods with a knowledgeable broker and learned a ton.  

It’s a SFR in a C+ neighborhood. 

I am in need of a licensed, bonded and insured plumber for a full gut remodel in the Bates Hendricks neighborhood.

We're up here looking at neighborhoods almost weekly.I have 1 property that we're considering making an offer on, it's now almost 180 DoM, fits most of our criteria, saw some potential "gotchas" that would make it less attractive for non owner occupant investors, so not sure what I'm missing and why other's haven't tried to grab it yet. 

Meaning if homes in a neighborhood sell for 300 to 325, all things being equal between two homes, the one with solar panels would sell closer to 325 and then without would so closer to 300.

OOS people in your area and mine quickly realize the deck is stacked against them for picking places in passable neighborhoods and carrying out long-distance rehabs.If small multifamily is what you want, you can keep looking for your unicorns, or you can figure out a different business strategy.

Primarily Lower crime areas with decent demand for rentals, ideally C+ and above neighborhoods. 

There are a lot of multi-families there, depending on the kind of neighborhood you're willing to live in.