Has stopped countless scammers - but probably turned off a few good natured people.

Prohibited Transactions: The IRS considers certain transactions prohibited, either by the nature of the transaction itself or who the transaction is with (known as disqualified persons).

I see some conventional lenders like The Loan Store that will do a DSCR and allow the property to be vested in the LLC's name, but they want the borrower to be the natural person and not the LLC.

Short answer:  it is baked into the business model.Long answer:It seems you may be overly concerned on the transitory nature of apartment renters versus single family renters. 

As far as cost, check the natural gas vs electric charges in your area. 

The building currently uses natural gas for heating and hot water.

Everyone talks about the BRRRR method like it’s a formula — Buy, Rehab, Rent, Refinance, Repeat.
But after working with a lot of investors, I’ve noticed one thing that often gets overlooked:The “tax” side of BRRRR.
...

It's a complex, time-consuming process that involves finding suitable land, navigating zoning and permitting hurdles, managing logistics, and securing both materials and skilled labor.

@Craig Cann I had not dealt with soaked carpet pads or wood subfloor but in a generic basis ozone treatment worked for us however I have heard others use enzymatic cleaners such as Nature’s Miracle or Rocco & Roxie are the best in getting them out completely. 

DSCR lenders tend to be cautious with anything that resembles co-living, so presenting it clearly as a traditional rental makes the process much smoother.Hope that helps!