I ended up changing my RA, and so now they're handling mail.

@Rob Gallitto Agent is the way to go.

They could buy just the battery and not the solar if their problem is really the power company turning off the juice. 

The forums are great but tax pros here don't know all the ins and outs of your specific situation so it's hard to give definitive answers.Do the house hack though!

The last property I sold I countered with 1) the buyer’s inspection is a yes/no within 5 days, no discounts will be given. 2) they asked for $5k off and I countered with I would discount up to $5k but the amount of the discount is the amount of EMD that is non-refundable.

I'm not crazy about the big box stores as they seem to charge too much. 

If there is "still contamination" at any level, I would be concerned about that and pass on the deal no matter what.

Some of the investors are international.

Most of the cost was the backhoe to dig up the line.

Go to etsy and search for "rental property tracker" and you will find hundreds of nice spreadsheets to track up to 20 rentals.