The PV company advocates for wiring all the PV panels in series and then letting any excess electricity from the panels balance equally through all three meters - that's technically the most cost effective for the whole property, but would mean I need to install a bunch of extra hardware to measure actual electricity usage. 

We have put some of our properties into a debt snowball, by which the extra rent over the mortgage on most of the rentals all go to pay off one house at a time.  

The extra $150 or whatever amount it is that you get extra from using 30years vs 15 years can be used to invest and earn additional returns. 

Becoming an agent takes time (90 hours of class work + lots of extra hours to get started), and MONEY (a few thousand dollars to do the class work, license fees, fingerprinting, test fees, and then pay all your dues).

He basically said it was way more hassle than it was worth because of the extra filings because it makes me an scorp now.

If he' still looking (and $2mil in value is a lot to replace via a 1031, esp if he's looking into multiple props), then you may be able to negotiate with him so that you have a contract but don't close until a little further out, giving him a bit of extra time to get his ducks in a row. 

She told me she thought the cleaning fee was just a way for the host to pocket extra money and I was supposed to clean the property before I left!

My father and I think that IF we can not add an extra room in the home with what is already there, that we could possibly add about 250 extra sqft to the property.

@Sherwin Vargas thanks for the extra information.

Is it worth the couple extra hundred bucks?