Install low flow water heads, swap the washer/dryer with High Efficiency models, replace the water heater with a tankless version and lock the temperature at a reasonable level, install smart thermostats that will automatically reduce the heat/cool when it senses no one is home, swap all the lights for LEDs, etc. 

of those I like next door best because it is hard to fake and the reviews are easily tied to a reviewer in your community.The costs of ADUs vary significantly for various reasons including by ground up vs conversion, difficulty with lot (sloes, access, etc), finishes, and even the size (bigger typically have lower PSF).Good luck

I got along well with them.Some reasons for delay are valid, and I've tried to be patient.

Is anyone else aware of reasonable alternatives?

Any particular reason you've chosen this market from all the way in San Diego? 

The reason is the rent-to-price ratio is good so you can cash flow, and most of the West side doesn’t have a Point of sale inspection which is really annoying.

There's a reason why people refer to the founders of PayPal as the PayPal Mafia. 

The judge is not providing justice to you; he's coaching the tenant, who is clearly violating the contract and essentially stealing from you.

I think we are starting to see a theme here: C and D look better on paper than reality and ar easy to buy (for a reason, I might add). 

I don't know her, never met her, never went to her classes, but from what I saw on YouTube she seemed to know her stuff and classes were reasonable.