I believe people that are working in the greater Boston area (especially Lowell) do a simple calculus "If I drive 15 more minutes to NH(Nashua) I can get more feature rich stuff at a lower monthly price than I can get in Lowell!

So when doing the math…Do I consider the original 2006 down payment costs and years of primary residence as part of the calculus on current ROI/ Cash on Cash return, etc…or ONLY the numbers associated with the REFI in 2012 when I converted the primary residence to rental property?

Does it change the calculus at all if the property (admittedly our first home, so we didn’t buy for income potential) will just barely cash flow without it, but might earn enough “extra” to pay for the points before a typical investor-refi?

If you truly cannot get your EM back without seller signoff or without seller being able to cloud to title, then that may change your calculus.

The dynamics of conventional lending are about to revert back towards a more reasonable, less conservative, calculus.

When the 10 year loan is paid off, the savings skyrocket.That changes the calculus for us, but we'll still install the heat pump anyway as it adds whole-house AC.Our new house, which we bought to downsize, is about 1350 sq ft. 

I am pretty good at math, tonight myself calculus, but real estate and finance numbers don't always make sense.

Obviously the calculus changes if it’s a 3/2, Quality of neighborhood, etc.

Maybe we never sell the place, and that's okay, but part of the calculus here is that we are building up considerable equity just in case.

Taylor created the rules calculus to describe the actions Taylor believe the Fed should do.the 1/2 point increase is obvious to everyone but the Fed.