Hi Joy, I think that's possible, assuming you could get the turnkey company to sell you the property at their cost or wholesale it to you at cost and then trust that you will engage them to do the rehab. Assuming it's an existing property, then you would be engaging them to do enough rehab work such that the value add would double the tax basis of the building (to meet the substantial improvement requirement of the QOZ rules). Depending on the value of the property, that could be an attractive amount of rehab work for a contractor.
I guess it depends on how flexible the turnkey company is with their business model. The ones I have come across want to buy the property, do the rehab, and then sell it fully rehabbed. That probably won't work for a QOF because the QOF then has to double the basis of the fully rehabbed building (but see my #2 scenario below).
If you had the QOF buy a fully rehabbed property from the turnkey co and try and split the price between their original cost and their rehab work, it could be risky under the QOZ rules because the QOF didn't really scope out or perform the substantial improvement of the property. UNLESS the prior owners of the property never treated it as a rental property, i.e. never depreciated it because it was their primary residence or it was part of inventory (in the case of the turnkey co). Then maybe you could take the position that the turnkey property was "original use" by the QOF (see p. 489-90 of the final regs for the definition of "original use.") I would definitely check with a tax professional on that scenario.
A couple of strategies that I have been looking at are:
1) QOF buys a property from a wholesaler unrehabbed. Then it engages a local contractor to do the rehab. Scope out a budget for the rehab that would equate to doubling the basis of the building. Let's say you could find a wholesale property for $75K and you could justify attributing $25K of the value to the land. Then you scope out a rehab project with a contractor with a budget of $50K and figure out how to maximize value with that budget. e.g. new roof, kitchen remodel, bathroom remodel, etc.
2) QOF buys a lightly rehabbed property from a turnkey company. The price is low enough and there is enough value add opportunity for the QOF to do substantial improvement and generate more rental income/appreciation. Say you bought a lightly rehabbed property for $100K from a turnkey company and could justify attributing $25K to the land. Now you need to spend $75K on substantial improvement, but you have an opportunity to add a bedroom and bathroom to the house. The numbers could still work for the QOF in that scenario.
But maybe the "original use" argument on a fully rehabbed turnkey could work if the property was never depreciated as a rental property in the past. Interested to hear other views on that.