Accordingly, studies vary widely in terms of the methodology, documentation, depth, format, and expertise of the study’s preparer.

Market Value and Valuation Methodology: Provides the appraisal or valuation methodology that lenders have used to underwrite the loan, enabling investors to verify and trust the reported property value.Why It's Important: Critical for assessing security and recoverability in case of borrower default.

When you ask how do you run comps for a multi family home, I’m not sure if you are asking for data sources or about methodology.

Include clear descriptions of the reclassification of assets, your supporting calculations, and the methodology used.Misclassification of AssetsAsset misclassification is a common error, but it’s one that can cause challenges during an IRS audit and result in incorrect depreciation schedules.When assets are incorrectly categorized, depreciation deductions may be overstated or understated.

I'd actually like to hear your methodology on buying.

The process framework you listed has covered the core links of house renovation, but combined with the actual experience of the real estate industry and the methodology in the search results, I think it can be optimized and supplemented in the following aspects:1.

Guru Buyer Beware - in this circumstance the guru does offer sound investment advice, methodology, and has been successful himself using this.  

Have you thoroughly reviewed the appraisal as to ascertain the methodology utilized by the appraiser?  

A competent CPA can help select the depreciation methodology that best suits your needs.FWIW, REPS requirement is 750 hours

While it may seem like a simple concept, cost segregation studies are actually a very complex process that requires significant documentation as well as specific methodologies.