In Greater Boston the cap rates have tightened so much that it makes no sense from a cash perspective, so you really need to think about whether there is a non cash value to you living in Boston - 20 minutes out.

But being in Boston it may be a different market as far as cost are concerned.

They actually have some 'better' features in that they have to survive being transported to the job site, so framing tends to be larger and in some areas doubled up to keep it ridge during transport. 

I own several multifamily properties in what I would describe is an improving C level neighborhood in Boston.  

Heading the other way you can check out the Boston Area REIA in Medford and I highly recommend trying to get to the Black Diamond meeting in Waltham (2nd location in Worcester).  

Tenant quality will depend on the neighborhood, proximity to transportation, highways, schools, food, shopping, etc, and quality of rehab workmanship.

Mildford and Hamden are very quiet places and limited to transportation ( you must have a car!)

I could agree with that, though it would be hard to prove that a person knowingly transported an illegal unless he is trafficking humans.

The tenant will have find temporary street parking or pay for storage somewhere.But if it's just an ugly junker that they are using for transportation?

The thing the rich want to purchase may be a utility bill, a regular vacation, or transportation (car, Netjets, or whatever), but rather than paying for the thing from current income they first invest in an asset or business and then use that to pay for consumption.