My understanding is that the tax treatment for single member llc's would still allow us to take the $250,000 capital gains exemption if we sold a couple of years down the road. ?

Good news for you is SFRs get a different treatment and do not necessarily need to be leased at the time your apply for a DSCR loan. 

I have seen old septic systems consist of an old car body for the tank and field all rolled into one (BTW cars rust away and the whole thing caves in - also provides zero treatment and discharges raw sewage to the groundwater) Proximity to a well is important.

I have done similar treatments with far less bleach and it still seems like it takes FOREVER to get the chlorine flushed out of it.  

They didn't expect me to come up and give the white glove treatment and weren't happy about it!

@Jill Widmer unlike your prior long-term rental the short-term rental has access to more favorable tax treatment.

Just to be clear I own a service in Michigan that kills mold and odors from properties by appying a shock treatment of ozone.

Furthermore, the Internal Revenue Service has also taken the position that if the replacement property is sold immediately after your 1031 Exchange transaction is completed then it was not held for a sufficient period of time to qualify for 1031 Exchange treatment.Little Definitive Authority on Holding PeriodWhile there is no actual holding rules or regulations and very little definitive authority on a holding period, in one private letter ruling the Internal Revenue Service has stated that a minimum holding period of two (2) years would be sufficient to meet the Qualified Use Test, and a number of court decisions have also taken the same position (although they have been somewhat more liberal than the Department of the Treasury and the Internal Revenue Service).Intent to Hold is Important FactorThe period of time that you hold title to the property, although important, is not the only factor the Internal Revenue Service will use to determine whether you had the intent to hold the property for investment and therefore qualify for 1031 Exchange treatment.

I have plaster walls in most of the house, but the drywall portions got the same treatment.

In fact, for the same reasons that have been pointed out here that POA and treatment of the escrow overages can work against your interest.