It also provides basic pricing ranges and discusses the different factors that influence pricing.Next, I would compile a list of these common repairs into a spreadsheet to help you get organizedOnce you've got your spreadsheet compiled make some trips to Home Depot or Lowes to get a feel for how much materials costs for flooring, tubs, toilets, lighting, etc.As Jim suggested there are good resources for Labor costs such as RS Means, but the best and most accurate source for labor costs is to contact local contractors. 

I still have North Tulsa rentals and I re-read my post up above and it still feels accurate.

What about timely delivery of payments and accurate, transparent financials? 

If the 50 percent rule is accurate, then after my mortgage (which includes property tax and insurance in escrow) I would break even.

So don't trust any information as accurate. 

Appraisers I get are so incompetent they can't accurately measure a rectangular box without a 15-20%  error.

After getting some general data I know that my numbers when running reports are pretty accurate and I have confidence that based on rental amount, purchase price, and associated expenses I can find the right deal, however I am concerned about actually getting the property rented and for the right amount.  

Again, nothing wrong with concessions - just be sure to calculate the true value of the home accurately.4.

While analyzing deals in my local Cleveland market, I am always looking for way to come up with more accurate  estimations for what I could expect to be rents, utilities, and property taxes. 

So you feel 3.5% rate for the term and down payment the OP reported was accurate?