I don't know of any other profession that does that.First lets talk about timelines.You have to wait for a court date to be allocated 2 - 3 weeks.You have to wait for the hearing date to arrive - up to a month.You have to wait for the court paperwork to send to the sherriff after you win - 2- 3 weeks.You have to wait for the sherrifs to schedule your eviction - anything up to 3 months.So rushing to file eviction as soon as legally possible isn't going to mitigate much of that loss.

My thought process for arriving at this conclusion is that although the lot size is the same, the value of the improved lot is not the same as a vacant lot because there would be no improvements yet on the vacant lot.  

The flip calculator allows me to arrive at my "maximum allowable offer ".

When it arrived it did not include an asking price, is that normal?  

...to estimate a prop value at an appropriate cap rate (8.5%), in this case we would say the bank uses 8.5% cap rate and divide into the NOI to arrive at an approximate valuation for the property.  

Once you plug in all the numbers in the Bigger Pockets rental property calculator, you can keep adjusting the purchase price to arrive at the price will yield $400 per month positive cash flow after all expenses.

When I arrived at the home, Murphy's law showed up and more things couldn't have gone wrong.

Of course CAP is the ratio of NOI / Market Price.As a metric, it's marginally informative - and only as valid as the methodology used to arrive at the NOI - and of even less merit when evaluating residential real estate.You would not base a purchase decision on NIM or CAP - I would look carefully at the free cash flow and return of the business, along with it's potential for growth (and the cost of realizing that growth).  

and this was walk thru when she arrived..

Then read on.I am that guy that arrived in USA after leaving his country, namely Cuba, in a homemade raft.