I had my business partner compile the offer with the renovation estimates and the information on the comps but the lender stated that “we mainly do those type of loans for people with tons of real estate experience because people can get into a lot of trouble if they don’t know what they are doing.”

He compiled all the data and presented it to the city council and no one wanted to hear it or do anything about it.

Let them know you'll pay whatever it costs up to $100 if they need to compile information for you.Be consistent, call around.

Some things that might help - work with data that is residential only, specify individual owned vs company owned, decide if you want to omit trust owned.I agree with  other comments that  the counties all do things differently so it's hard for the compilers to standardize across the country.

.#4 Compile Your Prices into a Spreadsheet or Estimating SoftwareOnce you start to get a better understanding of Labor and Material costs you will want to store this data into a spreadsheet or software that you can use to help you streamline the estimating process.The Book on Estimating Rehab Costs comes with a spreadsheet that you can use to help you populate your own database of labor pricing and material pricing.

Not impossible to find, as I did score a pretty sweet deal that I'm developing right now, but I'm not using any heloc and just using funds I've been setting aside to develop this deal.Basically I would just do your due diligence, look into airdna.co and buy reports on zipcodes you're interested in and do extensive research on the area from one bedrooms to 4 bedrooms and compile all the data from 50th to 90th percentile listings so you can come up with averages overall and see if it will pencil enough that even with a downturn you'll still be sitting pretty.

I've compiled some lists on ListSource but haven't purchased any yet.

Some preliminary numbers we've compiled looks as if we can build them with land, utilities, and finishes for $110-130/sf with lots of variables we are in the process of narrowing down. 

@Daniel Wolcott, if you're looking to go out-of-state, I'd suggest compiling a list of about 5 cities.  

Then when they had enough data to compile their algorithms, by by investors.