This notice plus the utilities being shut off may motivate them to move on.If occupancy continues, then I suggest hiring an eviction attorney to file an unlawful detainer in court.

Sorry to hear you’re going through this ordeal with your tenant, but I don’t see where you have any grounds now to file an unlawful detainer action for the smoke detector incident. 

And this keeps tenants from playing you, for extended months, waiting for a court date, so you can get what's called an unlawful detainer, so the police can be called in to man-handle the offending tenant out, if need be.

Case type is unlawful detainer. 

It took literally 1 year and 1 month to remove the tenant from the moment we filed the unlawful detainer (we filed this ourselves before hiring an attorney) through jury trial (the owner can represent themselves during these proceedings up until it goes to jury trial, that's when we had to hire an attorney) and finally the Sheriff's lockout.  

This includes attempts to collect, or threats to collect, through a collection agency, by filing an unlawful detainer or other judicial action, withholding any portion of a security deposit, billing or invoicing, reporting to credit bureaus, or by any other means.

Personally, i'd serve notice to any possible residents, of a pending unlawful detainer (or whatever its called in your jurisdiction) by an eviction attorney before doing anything but if you are sure its not occupied, and you have legal ownership, you should be able to do with it what you see fit. 

So while some try to go that route, most fail to pay the rent to the court so then the forcible detainer may proceed

Our courts are not hearing u lawful detainer hearings tomorrow.

That was one of the things that convinced me to go ahead with it as I figured if I was living with the tenant I wouldn't want to be in a situation where I would have to go through the court's unlawful detainer process.https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?