You can follow all corporate formalities with religious fervor and still get stuck with a personal judgment on an alter ego theory (in many states).   

Don't co-mingle your funds and don't use it like an alter-ego. 

Should be a very simple project for them as we aren't altering the layout or overall structure at all.

This translated into a full-gut of the entire house with an estimate of just under $40,000.00 for the abatement.The Vendor, an estate, was unwilling to do the work (expected) but were equally unwilling to reduce the price sufficiently for us to underwrite the risk.

While not PCB, I'm sure some of my experience could translate to your area. 

The path of least resistance may be altering your policy, and having a damage deposit for the dog.

Many companies touted the add on value as simple math where the energy savings translated to extra value equal to the cost of the system.

3.) how have your tenant relationships been altered as a result?

To quote Pitbull, who was translating a Spanish proverb, "Ask for money, get advice.

From an NOI perspective, the delta is $5,400 in year 1 which, at a 6CAP, translates to a decrease in value of $90,000.