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.

"Drug-related illegal activity" means the illegal manufacture, sale, distribution, purchase, use or possession with intent to manufacture, sell, distribute, or use of a controlled substance (as defined in Section 102 or the Controlled Substance Act [21 U.S.C. 802]) or possession of drug paraphernalia. b.

There was a unit in which he found meth paraphernalia, and this particular unit is a 4 bedroom with a potential to make an office space a fifth bedroom if we add a wall.

Also as a real estate investor you don't always know who is answering that door I've been through houses where the owners had no problem leaving all their drugs and paraphernalia out in the open, some people are a bit out there to say the least, I would personally advise against it.   

Get police/fire department results with regards to mjs, ask what other drug paraphernalia was found in the room.

If he is in fact in the middle of a lease, then you could give him some sort of legal 7 or 8 day notice for breach of lease agreement for drug paraphernalia.

Then, today, one of my contractors informed me they found drug paraphernalia inside this morning.

Judging by the grab bars and other paraphernalia, this likely happened when the last lady of the house grew to frail to navigate the grand staircase to the master suite on the second floor.The second floor has the master suite (~800 - 1000 ft^2) on the left-hand side of the house and two smaller bedrooms (each about 400 ft^2) on the right-hand side.

I buy foreclosures and distressed, so during the initial rehab I'm always finding porn, drug paraphernalia, occasionally falling through rotten floors, evicting wild animals, discovering termite damage, etc. 

At a move out inspection meth paraphernalia was found in one of the units.