One issue I see is that I never see samples of off market offers that aren't in cash.

@Jon Saputo So when surveys are done, depending on the sample size, there are varying degrees of error.

Here's a sample from the attorney I use for this sort of issue:https://www.thslawfirm.com/media/documents/2014_03...But that's a form for here in CO and yours may or may not be similar.  

Ask the applicant to do two or three samples and submit them.

Here is a sample property from Clermont - short sale @ 163k (I think its below market value) and rents for around $1300.

My sample size is only 3 purchases, but it will grow.

Do you have any suggestions or samples that I could go by? 

Yes, such a statement is limited based on the self-selected sample size.

A sample is like the Department of Parks in CA wants me to build a 10-bed Infirmary building with two ADA restrooms, then they have alternate 1: Construct concrete pathway from road to building, alternate 2: construct asphalt pathway from road to building, alternate 3: construct patio first floor, alternate 4: construct deck patio second floor.

Over a large portfolio of properties you will have a large enough sample size to predict such things....but over a sample size of 1...the estimates never hold up.