In terms of doing a refi the house would be compared to others of the same value and adjustments made for BR or SQ FT. 

The pricing is usually WSJ + 1 point adjustable with a floor. 

Goal would be to reduce manual work and time intensive tasks2.

Tenants typically pay around 30% of their adjusted income towards rent, with the government covering the rest based on local payment standards.

Typically HELOCs have adjustable rates and if the banking climate changes I believe the lender can actually cancel them at their will.

- Adjust plans as needed to overcome challenges

My two cents summarize is that you can make some nice cash, especially for the northeast, but at the same time the units will be management intensive and given the landlord / tenant laws of MA, one troublesome tenant could wipe out many month's / year(s) of profit.

If for some reason I can't get a utility turned on, I assume that the utility itself inside the house is faulty and will need repair/replacement and adjust my offer accordingly.

However, the current market correction is a result of the Fed Reserve's policy aimed at slowing down the market to prevent such a crash.This correction is not indicative of an impending crash but rather a necessary adjustment to stabilize the market.

So what you refer to as pot of gold has always been there so far for any hold over 12 years (a little deceiving as in inflation adjusted dollars it was a year or so longer).