I believe it is everyone’s responsibility to use surge protectors on all sensitive electronics,  whether homeowner or renter.I would say it could fall on negligence when the “surge” is caused by faulty wiring inside the house.  

The new tenants were all threatened by this guy, and they and each of the neighbors on either side of our building all got restraining orders against this guy.

Might be because of Californians being more drought-sensitive, but people are more careful about water usage these days.But, to be honest, I'd kill to have one, myself.

With someone this sensitive, in my experience, it will be never-ending. 

For me it really depends on how sensitive the tenants are going to be to a rent increase, how bad you want to keep them on, and how easy it will be to get new tenants.

You can encourage her to get a restraining order against him if he touches her, that will get him out of your unit for a while too.

They are very sensitive to any smoke smells inside an apartment.

The property managers to whom I've spoken so far appear to charge a % fee based on gross income so that wouldn't be sensitive to # of doors.  

File for a Temporary Restraining Order. - usually granted for 60 to 90 days2.

I get it just in case the tenant wanted to answer court decisions ( and he did ) and will need a place to mail it to seeing that court dates are time sensitive