The job would be easier than a home inspection because they aren't testing all the outlets and appliances, walking the roof, crawling the attic, etc.

ie; eliminate personal debt, invest in better data metric platforms for leads, invest in direct mailing or perhaps join mentoring and mastermind events?

I paid $700 over the summer in Santa Rosa and it was higher since they also had to provide rental income data. 

Data, like vetting properties and running them through calculators or analyzing markets.3.

I have adjusted data to pull older comps  and expanded the radius to include more data.  

I also provide them with a folder with the agreement of sale (at least the page with the sales price) and copies of comparable sales with key data points highlighted such as price, date sold, sqft, etc.

May answer as to what you need to know before you make an offer is basically "everything" with the exception of less than obvious defects to the structure or situations that need environmental testing.

The main problem is me inputting getting accurate Occ Rate and ADR numbers, but that's not a spreadsheet issue, that's a data problem.

If you’re still looking in the area I always love discussing investment strategies and market data.

While certainly as you mentioned there is room to improve it, I'd argue that the strength of the calculator is in the presentation the data is given to you in and the predictions they can provide.