I invest in dense urban environments where 2-4 unit properties make up 50%-70% of the housing.  

If it cost you $58,000 and you are renting it for $825/month, you are looking at about an 11.9% return, which I would say is great.As for recommendations:What Every Real Estate Investor Needs to Know About Cash Flow by Frank GallinelliBP Pocast #120: How to Find, Analyze, and Finance an Incredible Real Estate Deal: http://www.biggerpockets.com/renewsblog/2015/04/30/findanalyzefinance-real-estate/

The webinars, podcasts, guidebooks and forums are incredible, especially for a newbie such as I.

It's incredible how much of a difference this can make.

Thank you so much, @Steve Vaughan this is incredibly helpful!

Also if you install them you maybe eligible for insurance discount because you have done an upgrade and provided a safer environment. 

You'll understand this Mark: just because ATC tells you that you are cleared for the approach, you wouldn't descend below minimums if the runway environment is not in sight.

The units are separated for electricity, but it has a separate meter for outdoor security lighting and indoor hallway lighting which I see as a very good thing as in Massachusetts the Tenant/Landlord laws are incredibly strict and tenants paying for common space utilities is a big no no.

I have connection in Lincoln with people in real estate, but I believe knowledge and wisdom are incredible valuable and I will take all of it that I can get!

In my case, getting money to invest through basic personal financial management was far easier than finding an incredible deal or using a creative financing solution.My alternative was to attempt to find a screaming deal from a motivated seller.