And, the yes/no is going to be based on a) client's qualifications etc and b) accuracy/completeness of the loan originator.

Roughly what rate of accuracy should I be expecting?

Good PMs understand the necessity of speed and accuracy in PM. 

Bank appraisals are (typically) the least reliable in terms of "accuracy", as they are designed by the bank, for the bank, to suit the banks needs, which is typically to lend 80% of the value.

Personally I'm skeptical of its accuracy and utility and how evidence-based it really is, but there you go.

Ben Howard RE/MAX GoldThe accuracy of all information is deemed reliable but not guaranteed and should be personally verified through inspection by and/or with the appropriate professionals.

I'm constantly tweaking my numbers until I'm confident in their accuracy.

In addition, I have appraisals done for the record when I received it for accuracy.

The most thing that's difference between real estate and stock is these: the accuracy of real estate investment is about 80% correct while for stock,even if it's hedged, at best is 40%.

's comment on proforma accuracy, especially on value add deals.