If you go in your county auditors site sometimes they have the phone numbers listed there also

I called from a list I pulled off of Franklin County Auditor.

I decided to undergo my own research to learn more by looking at the county auditor's website and I found some stuff I don't quite fully understand.

Are they "bluffing" about their auditors being able to track that list?

I doubt it's owned directly by the city...if it is, it may be under a different program...check the county auditor transfer history to get the story of the propertyI'm assuming this is in a qualified Opportunity Zone as well?

Most county auditor sites will let you pull an address, plug in a sale price, and get the actual numbers.  

As @Christian Stoecklein mentioned, a large W-2 for a single filer (or both spouses if MFJ) is sure to trigger an audit or examination eventually if RE pro is also claimed.If you're a RE pro, consider working with a tax pro who specializes in this area to make sure you're substantiating your tax return positions every year.

Which goes into a very good mind set to take when providing records for whoever your tax accountant is - you have not hired them as a bookkeeper, and you have not hired them as an auditor - those are very different services. 

Lets face it, the only issue is if auditor comes asking (for tax purposes anyway).Good luck.

If you have claimed this deduction or plan to in the future, ensure that your CPA or tax specialist is keeping up-to-date on the latest filings to ensure your documentation is correct.The new guidelines established that an allocation letter should include all of the following:The address of the government-owned buildingThe date the systems were placed in serviceThe signatures of the authorized representativesThe dollar amount of the deduction allocated to the designerThe allocation letter must be in writingThe costs of the energy efficiency systemsA penalty of perjury statement signed by the authorized representative of the government Must contain contact information for the authorized representative of both the owner of the government buildings and the designerDuring the audit, you can expect the IRS to confirm the energy modeling was conducted as well as ensuring that a third party professional completely unrelated to the project was the issuer of the certification.The 179D tax deduction should be claimed by the individual “primarily responsible for designing the energy efficient systems, and the person who creates the technical specifications for installation” for government buildings and designer allocations.When analyzing a 179D claim, the auditor will use “the most recent Standard 90.1 published by [ASHRAE] which has been affirmed… not later than the date that is 2 years before the date that construction of such property begins..