Some communities have doubled or tripled in value but thats not the norm.

I bought a triple decker that is under 10 minutes walking to the Fields Corner T stop.  

The person before likely had the triple play bundle or whatever from comcast that includes phone service (or whatever your local company is.)

You need to triple check what is metered.

I'm with you @John Arendsen I have yet to see the downside to this process other than maybe some design restrictions, but a single family home that is built in a factory to the same specs as a site built, at triple the speed and 80% of the cost is working out great for us so far.

Commercial property (aka like strip malls) typically goes NNN, triple net which burdens the tenant:A triple net (NNN) lease is defined as a lease structure where the tenant is responsible for paying all operating expenses associated with a property.

Will my mainrence costs be nearly triple?

The fine is up to $500 and it can triple to $1500. 

I just transitioned from residential to NNN investing a few months ago and purchased four triple Net properties.

I will I would have taken all that capital and rolled into an out of state cash flowing property, and rent here to basically live for free.All that said, I was talking with my dad earlier today, and he bought his home in rural NJ around the same time I bought the rental condo I was describing above for about the same purchase price as me, and he thinks he would just about break even, while I more than tripled my money.