I've used to it myself to analyze all of the 35 units I bought over the last few years and personally talked to 100's of other investors who've analyzed and closed on great deals using it.I'd love for you to actually try it and would be happy to receive and incorporate any feedback you have into future releases.

In the event that there is an emergency, the person would need to be able to exit the apartment via the window.

Some manufacturered companies treat it as personal property not real property.

depending on where you are in NJ you might have the Lehigh Valley in PA a couple hours away, or Delaware, etc. you can go to meetups, see places in person, and start to build a network.

Quote from @Pixel Rogue: Personally, I think you are over-thinking this.

@Michael Plaks comments in this recent post on making sure the person you hire understands real estate sounds really relevant to your situation.  

I do know coaching/mentoring/selling programs can be good money, especially if a person knows how to market themselves or has a bit of prior exposure.

The energy in person is different for me, and I've made some of my best connections and friends at Chicago meetups.Here is a list of the Chicago event from BP: https://www.biggerpockets.com/forums/521-real-estate-events-...I also have a list of ALL THE CHICAGO MEETUPS that I am happy to share with you. 

I have personally purchased large apartment complexes from REITs and know how poorly some of them manage their properties. 

Real estate investing is forgiving; the average person can still make money even with some big mistakes.