One side can't be expected to just eat the vagueness.

Thus interest is not eating us up.  

The best advice on this topic, in my opinion, comes from 2 books:How to win friends and influence peopleNever eat aloneI am also looking for brokerages to work with or even experienced shadow / intern for to gain experience and additional knowledge.

Marketing material from commercial brokers in all 50 states, for all sorts of NNN, isn't useful, and you aren't going to really get insights until you narrow your focus a bit.Starbuck is a nice easy thing to watch b/c they are all over and, since Americans have largely replaced their trans fat addition (McDonalds, Burger King) with a sugary caffeine addition (Starbucks), it's likely going to do well for a few decades. 

Frequent turnovers can quickly eat into your profits.Instead, I’d recommend building up a solid reserve fund and addressing work orders promptly.

I would lower the price and eat the cost for a year. 

Taxes, interest, insurance and maintenance will eat into the profit. 2.

The bear will eat you.Where can I learn to do this properly?

The time you spend (or pay someone) to assemble eats into the savings, plus these items tend to be lower quality to begin with.

Next thing you know it's time for a short break and your free to go..lolThe bottom line is know what you are buying and look deep inside yourself to ask the hard questions: Will I not be able to eat or live if I buy this, will i do the hard work to make it work for me.