You can create your own, or there are house flipping spreadsheet templates available online 

The preliminary analysis can have lots of data, so it's important that the provider thoroughly review it with you to explain what depreciation tax deductions Cost Seg study provides and what depreciation benefit you would get w/o Cost Seg.

I sourced the property off market and secured seller financing, and I also self manage it as an Airbnb host with nothing but 5 star reviews.

check the local municipal code, most are online.

If so, review it to ensure it matches the estoppel certificate4.

https://www.biggerpockets.com/forums/93/topics/67638-where-to-find-wholesale-contracts-online

Search for this in a Michigan Public Notice legal newspaper or an online legal notice aggregator site like USALEGALNOTICES and the fount of MI pre FC/FC data will be available to you.

They are a fraction of the price of those who advertise online.

Build an SMB on top of your real estate (the reverse of #2)Short-term rentals and high owner-participation real estate businesses can have great returns.Obviously not for you if you just want passive RE.We are in the deep end here, where each case should be judged on its own facts and merits by your CPA.You should hire a professional to review your particular situation before you make an investment.

But I agree with @Stuart Udis - when making offers on occupied rental property, I always review the Financials including the RR & T12.