How it is configured to invest does not change the tax rules.UBIT applies to any IRA, when it engages in a trade or business activity.  

Is there some doubt/ambiguity on the configuration? 

If all units are exactly the same configuration, same finishes, same rents, etc. then I'd wait a month or so and see which is the least desirable tenant.

@Jon Holdman Just got it fixed and cleaned from the plumber, actually the plumbing wasn't done right from the GC who installed the washer dryer hookups in the basement unit , he didn't put in a vent or a cleanout pipe and did a P-trap configuration wrong.  

You know the different configurations and packages.

I am posting this in behalf of my in-laws who are the landlord of a rental affected.The landlord was notified last night of flooding in the basement unit in a duplex (upstairs, downstairs configuration) (older home).

Additionally, older properties may have used poor or unsafe construction materials (like asbestos), which you may have to replace.Beds/Baths: Different areas will have different prevailing bedroom and bathroom configurations.

I was able to accomplish what we did, because I was not capital restrained, and because I knew exactly who the prospective buyers would be and how many of them I could count on to buy a home in that redone community.As a general rule, our company never recommends anything narrower than a 16' wide, even in shorter configurations, unless it is a smaller multi section like Titan builds for lots that have width but not length.

--I've budgeted no more than $140,000 for a near total renovation (roof, siding, re-wire, re-configure, addition of master bathroom and relocation of first floor powder room, etc, etc)--Comps justify an ARV of +-/ $750,000.  

So far: quarterly % change in Real GDP, YOY % Change in Monthly home prices, job growth, interest rates, population shifts, rising wages, area revitalization, relocation, marriage, family growth, divorce, death, debt, active inventory, sold homes, avg. sold price, average days on market, Concentrations of jobs by occupational category, average level of education, school rankings, crime, appreciation, property tax rate, state tax rate, positive/negative RE legislation, monthly rental income, average age, inflation, popular property types and configurations, vacancy rates, volume of rental units added to market, time to rent, months of supply, volume of new home construction.