For commercial properties a new roof can qualify as an energy efficiency project.

I want to be conscious of the time and energy they are sharing with me. 

You can try to get blood out of a rock and recover money from her, but from a kharma standpoint it is just bad energy.

If the extra $100 isn't worth your time, I would just cut your losses, stop spending mental energy on it and pay the PM for their over priced range.

We can’t discriminate so we still have to show families and it truly is a waste of time and energy.

Window quality makes a huge difference in the long term both with build quality/functionality and energy costs. 

Is there a strategy I haven't seized on where I would be paid back for the solar energy that I generate but don't use (additional revenue and lower costs than traditional electric) and does any one have any experience flat rate billing tenants (say for example $100/mo) and then pocket the difference if they actually use less energy than the flat rate amount?

It is far, far more important to spend your time, energy, and money on learning the laws and how to manage your properties well. 

An energy audit is money well spent.You need to figure out if the high bills are due to tenant waste or an inefficient house.

@Chris R.Same here, and the thermostat is with a tenant who isn’t too energy efficient.