I'd check with the county auditor to see if it's recognized and if the work was permitted. my own opinion is that you added extra tenants, kitchens, bathrooms, etc to a building that it wasn't intended for and the rest weren't updated for it. for a first time investment it sounds like a no to me. just my 10 years of experience opinion without looking at the deal. worst case make an offer and get a very thorough inspection. make sure they check age of everything and pay the extra for the sewer line to be inspected.

Other than the county auditors website, how can you find a property owner?

Honda has invested $3.5 Billion in Fayette County for a plant that will make batteries for electric vehicles. https://www.dispatch.com/story/business/automotive/2023/02/28/ev-battery-plant-in-fayette-county-to-employ-2200-workers/69933524007/According to Licking County Auditor records, Amazon Data Services Inc. bought 392.11 acres of land ($ $116,653,320.) on the west side of Beech Road and straddling Miller Road on January 17, 2023. 

May be more efficient to do Driving for Dollars- go around keeping track of these properties and skiptrace their owners later via auditor.

IRS can do anything. it does not mean that a particular auditor knows/follows the law. 

There is no industry licensing, regulatory or governing body, audit or equity capital requirements (unless you are licensed for other reasons like a bank or trust company). 

I looked at Portage county (rural county just east of stow) and they call it the county auditor.  

@Gabriel Litvack Cost segregation studies are not DIY projects unless you like spending time with IRS auditors. ;-)  The IRS' preferred methodology for a cost seg study is engineering-based.

I have a friend who is an IRS auditor and she has busted several Kyosaki disciples on their "aggressive" (i.e.

A look of my quad on County Auditor online revealed total tax for 2017 was $3,359,20...