Sit with your current offer and let the bank make whatever irrational decision they feel they need to make.

As Warren Greenspan stated, irrational exuberance is a bad thing.    

Properties on slabs with foundation problems can be fixed affordably with a reputable contractor and often pose an opportunity for negotiating power with the seller - many retail buyers have irrational fear of foundation remediation in a new home. 

It's extremely irrational to go around pontificating and preaching morals to buyers and sellers, IF we are talking about a Free Market.The line is drawn with criminal code.

This includes a detailed DCF of 20 years, IRR at 10, 15 and 20y resale and a three-way scenario analysis.That's before negotiations have even started (I have looked at the units though).

Little more upfront and less 'cash flow' but less drama, repairs, cap ex and 10x the IRR at exit. 

If the comps, cap rate, cash on cash return, etc. all point to a number 20k lower, the only reason he would decide not to take the deal is if he believes there's enough variance in the market that someone will make a financially irrational decision - which is perfectly fine, but also potentially risky.

When you use your money for ANYTHING you become emotionally involved, becoming emotionally involve, you make irrational decisions.

It's false because in practice I'll go higher on my offers if I think I'm re-selling to hungry, frenzied and irrational buyers.

There are some other data sets that might be interesting here:http://www.fhfa.gov/DataTools/Downloadshttp://www.econ.yale.edu/~shiller/data.htmhttp://recenter.tamu.edu/mdata/[XLS] Robert Shiller "Irrational Exuberance" Housing DataI have to believe each of the Federal Reserve Districts probably have some other good stuff as well.The Urban Land Institute might be a good place to look for future projects or ideas but I didn't see any readily available data sets.