How do I fix this issue so when I submit the names and address to REI Skip I get the most accurate information?

Call up all the sources or the expenses (like the water company and electric company to verify the expenses are accurate).

If you want to make it more accurate, I would break the placement fee into a monthly amount and convert that into a percent combined with the 10% management fee.

If the cost is near accurate it would be something I would consider as a value add in the future. 

Appraently they are considered low risk for lenders and I would think in my situation they would feel pretty darn comfortable that I'm going to be a good gamble.

One of the companies we really like is Roofstock, as they appear to do a lot of the legwork for you (finding, what appears to be, decent rental units, along with calculating all of the financial information).My question is, has anyone bought through Roofstock before and looked back to see how accurate the Roofstock calculations were (cash-on-cash, turnover repair costs, cap rate, etc)? 

A close second is the ability to accurately estimate rehab costs. 

Auto Liability:  Even if you do not own any autos, you should make sure there is coverage for Hired Autos & Non-owned Autos is included on the Liability coverage.There's no way to accurately estimate the costs of the various policies without more info.  

Depending on the type of property and the market the 50% Rule is usually fairly close for expenses.How accurate is your ARV? 

I'm not 100% sure the property lines are accurate.