Define and Standardize Core Business ProcessesA scalable business requires well-documented and repeatable processes to ensure consistency, quality, and efficiency as you grow.

Everyone has provided great insight so far, but ultimately your obligations as the landlord and the tenant's obligations are defined in the lease. 

@Devan Dorzokit's hard to say exactly what defines a 'major' rehab but 60K certainly seems major

Really really wish BP would embrace creating a glossary and leading the way to defining these terms for the industry.

All that to say, I think clearly defining what your short-term/long-term goals with real estate investing are will help you make a decision. 

At least in how I define it.  

If any portion of the building or structure is occupied by the taxpayer, the gross rental income from the property must includes the fair rental value of the unit occupied by the taxpayer.IRC 168(e) defines a dwelling unit as “a house or apartment used to provide living accommodations.

The tax law does NOT define specific requirements or standards for cost segregation studies, and neither does the IRS.

To start investing in rental properties, define your investment strategy, such as house hacking, buy-and-hold rentals, or flipping.

It's not a panacea and it's not for everyone but for the really outgoing who want to get with people to do deals and don't need heavy defined how-to-content will get way more value than the cost.