When the taxman found out that it was a rental the property taxes almost doubled.What is the political calculus behind this?  

It's not all just about dollars and cents, risk exposure is paramount to keep in calculus, and in-put for out-put ratio.

You have to learn arithmetic and algebra before you take on calculus.  

Your question might look simple or naive but it's a calculus question that I'm not capable of figure out quickly.

Finally, in the event of default, as we work through the grace period we could get the deed recorded in our name before we sought a new buyer (if we couldn’t get the current buyer back on track).Obviously I’m getting the sense no one here’s a fan of skipping recording, I’m just wondering if these additional aspects change the calculus for you at all. 

Seems to me that's a significant part of the decision calculus.

I'm not stuck in Analysis Paralysis, because we've been writing offers frequently - but at what point do you accept the change in your mental calculus to increase your budget?

Part of the calculus here was the contraction in cap rate premiums over cap rates observed in the office sector.

Of course this calculus is personal to each individual, but I'm curious what your thinking is towards this issue.

Grading a house is somewhat done in insurance, based on the cost to rebuild, costs of construction and age, condition of a single property and then again to the average in an area might be a better calculus.