He tells me the city feels landlords illegally profits from these illegal units, and having to demolish it and built what you need from scratch is proper punishment.

The California mandate will boost the solar industry but there's a risk that other energy commissions across the country could react by punishing solar in those markets. 

Crime and Punishment should be opening in the next 2 months.

Any willful attempt to avoid application of this chapter by an owner may be punishable by criminal or civil action.

As I understand IRR, the calculation "punishes" a long term hold, and we are long term hold investors. - For ROI vs ROE - I consider the "I" to be your original investment (e.g. down payment) into the deal.

I'm tempted to file an unlawful detainer.

I'm not a lawyer but I think they would have a difficult time punishing the landlord when the activity (using marijuana) is illegal federally.

i found out the GREC doesnt get compensation for you they just punish the property manager.   

However, there is not a lot of of punishment you can enforce now. 

Figure out what aspect of real estate excites you and would seem enjoyable to you and follow your passion.For me, rehabbing a house would seem like a miserable punishment, while other people LOVE it.