You can buy something like a cheap Arlo camera system at Costco and pay for the Internet connection in one of your units.You could ask law enforcement to do routine drive-bys or safety checks.

I see this constantly out in the market place those who want to jump in the RE world that have limited to no resources and they are far to worried about what the equity or money partner is going to make.. or they spend months trolling the internet trying to find that private investor who is happy with 8% or 10% which they never find and they just lose the dream   ... if there is not enough money in a deal to split profit or be able to comfortably pay HML  then the deal is too skinny to start with..

Why don't you "do better" and be kind to Internet strangers instead of leaving them condescending messages?  

You gambled your investment capital on an internet investment-promoter.

When I look up this question on internet, it always says that in NYC, its the tenant who pays ...but in reality I am told that about half of Brooklyn listings are no fee (meaning that landlord pays) in order to get it rented fast.   

Hope you get another better offer :) ya my inclination is to pass on this buyer.. normally my wife handles all the buyers but I am working this one solo.. so she can concentrate on the 12 pre sale contracts she already has..

How do I find out which neighborhoods are up and coming on the internet.

you can however require an non-internet letter.   

Scott Scheel has a good course about commercial real estate, but he concentrates more on apartment investing in his course while he is actively buying retail buildings and not apartments.The loan default rate on apartments is 58%, so before you buy an apartment building think why is it so high.Another avenue to consider is mini storages if you want to own real estate, the default rate is only 16%.

First of all sure, maybe you did it and had good time, buttt from what I've read all over the internet its basically crap.