But rental is assumed so you get the credit or extra income based on Appraiser survey of local rents for similar homes to get the mortgage approved.

Sales price is disclosed in the MLS, it can be disclosed by the buyer or seller in the sales survey(I have never returned one but people do) or it can be disclosed during a protestThere is no law that prohibits disclosure by any party

Also, when our tenants move in for our PM company, we ask them several questions via a survey, one of which is about the price.  

I've had a few investors ask me for a survey but I've always seen this as part of the end buyer's due diligence. 

It does not look like I'll be able to get a survey in time for the closing.

Then go to two more doors down from them, so nobody gets suspicious.If anybody asks you who you work for, tell them its a company that does door to door surveys, you don't really know who the customer is that requested the survey.

If you are willing to pay a subscription for additional features including prequalification surveys and mobile applications, bulk messaging, and a built-in calendar consider testing RentRedi.

According to a survey conducted by [Local News Outlet - Fox4], 80% of Kansas City residents reported feeling a heightened sense of pride in their city following the Super Bowl victories.

They usually have a surveying team in their own company.  

Between the site work (water, sewer, electric, gas, foundation, surveys, curb cut, temp fencing, police detail, water line for sprinkler - if required vs pump and tank system, etc), you're probably looking at 100-135k.