.#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.

Decades worth of compiled knowledge for... $30(ish) on Amazon.

@Mike Kalob I have researched rent control in the various towns in the area and compiled a small list for my use.

Others focus in on a certain score like Fico5, what have you.The numbers like Fico5 or Transunion2 have to do with what kind of debt is tracked to compile the score. 

Unsure if there are good sites out there that attempt to use MLS or other listing data to compile information and analyze it for this purpose too - if there are and you've had good experiences with them, would like to know about it.  

In this regard, the reports and data either originating from or compiled by the Albany Police Department demonstrate that, between 2004 and 2009, petitioner's properties received a disproportionately high number of calls for service compared to similarly situated properties and, further, a substantial percentage of those calls were for what the police denominated as "nuisance calls," i.e., calls involving complaints of fireworks, domestic incidents, "groups annoying," loud music, animal control issues and neighbor disputes.

.#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.

Below is a bird's eye view.1) The county or municipality identifies properties that have delinquent property taxes and are eligible for the tax sale.2) A list of these properties is compiled and made available to the public, usually through the county's website or through a public notice in the local newspaper.3) Prospective buyers are required to register for the tax auction and provide a deposit, which is usually a percentage of the expected winning bid.4) At the auction, the properties are sold to the highest bidder.

A unique script has to be written, for each county, to iterate through ALL of the accounts, and compiling the data in a database, which can then be queried for accounts which match your criteria.Iterating through all of the accounts requires exploiting the county's online property tax search.   

So when you decide which contractor you want to use, you can compile everything together, and have that contractor rebid.