Achieving a 4098% IRR in just 58 days is nothing short of remarkable.I’m curious about a few aspects of this deal:Entitlement Process: Can you elaborate on the land entitlement process?

Only asking since most newcomers to wholesaling get caught up in the aspect of having "all their ducks in a row" that they forget to focus on what actually matters: deals. 

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.

It is missing one aspect of property management - maintenance requests/tracking.I'd say Stessa is great for managing one to 20 units.  

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

I would not add much, a simple bedroom, bathroom, kitchen, and hvac.Another aspect of this deal is that the building is listed as a historic building and thus could qualify for some grants. 

If you have a good screening process that checks all aspects of their background, you'll weed them out through other means.

You've got to bring your A-game in all aspects.