The main reasoning being that a family of 4 doped up daily on meth will most likely not want to face a sheriff entering their apt and arresting any or all of them on the spot for drugs or paraphernalia on their person or personal belongings.I do like the sound of that, but can't seem to find any clear 'flat fee' eviction services in this area (Long Beach/Signal Hill) or surrounding LA area.

Seeing how the unit was falling into disrepair I started looking into it because I wanted to purchase the property and found out the current owner has been arrested for murder?!?!

Is there really not enough grounds to have these people arrested already?

If she wasn't or won't be arrested, you may not have much ground for the notice to vacate based on this specific incident. 

The police will pay your claim,  just document the cost and damage and go down to the station that arrested the guy.  

Criminals come from all walks of life and all (at least the ones who are caught and can't afford an attorney who can get them house arrest) end up in the same prison.I've dealt with at least 4 properties where a seller was in prison.

The day of close, the tenant on one side was arrested and his 80 lbs of marijuana (illegal in Indiana) was confiscated.

The grandmother didn't want to press charges but the cops said it's automatic any time there's evidence of an assault Based on witness accounts, the woman was arrested and will be in jail until her court hearing in August.

THEN I read in the paper that she has been arrested, with her boyfriend, for distributing drugs. 

Police raided and arrested the meth dealer and took possession of the fourplex under civil forfeiture.