I "stumbled" across a website that provides cost segrgation reports. What was unique about this one is they will sell you a membership and then allow you to create reports on your own. Unfortunately I didn't note their url.
While a cost segregation study may seem like a simple concept, it's actually a very complex process that requires significant documentation as well as specific methodologies. If the proper reports and documentation are not completed, you run the risk of failing an IRS audit and the cost segregation not being honored. Here's a link to the IRS website noting specific items that are included in the cost segregation study report. To be honest, with all the new regulations around documentation for cost segregation that has come out, I recommend having a professional do them. Of course, I run a cost segregation company BUT I would recommend that regardless. The IRS is taking a more conservative approach and hiring more personnel and you want to ensure you have all your ducks in a row + a team behind you to back you up if something comes into question. Let me know if you'd like an introduction or any further information.