I have no prior claims and the house has new flooring, new roof, new everything.

Make it clean, de-risk the exchange process and simply your costs for the exchange.

I am covering utilities for the 1st floor and garden unit (for a 3-unit MFH rental)Any recommendations for a programmable thermostat where I can lock appropriate temperature ranges?

But get an LLC and rent from it personally...any cleaning expenses, paying your mortgage etc. come from the LLC's bank account, any outside money that you need to fund the account will be a capital contribution and then you will be able to do cost seg on that property.

Input new flooring, new HVACs and had it at a total value of $18k.

It's a good location but an overwhelming rehab just beyond my experience; sorta a full gut/ or the basic kitchen, bath, flooring and paint remodel.

There's been a lot of stories but the most common recurring theme to the ghost sightings is a little girl in the north room on the third floor.

There was water in the utility room, went through wall to the next bedroom and left water stains where I may need to replace the floor. 

A licensed general contractor or engineer should be consulted to evaluate the wood flooring structures as well as the crawl space ventilation in regards to the moisture and damage concerns.

After this tenant leaves, you must clean/repair, market, screen applicants, select an applicant, collect the deposit and rent, get them moved in, etc.