What is my landlord responsible for in terms not just treatment but complete prevention of infestation?

Yes, the landlord is responsible for dealing properly with fleas, rodents, etc. See e.g. Civil Code Sections 1941-1941.1. You should complain to...

Gave my adult son a 60 day eviction August 1, 2018, don't think he has any plans on moving Oct 1, 2018 ?

If he qualifies as a lodger (see Civil Code Section 1946.5), local law enforcement might remove him. However, in some cities, the police refuse to...

Can the new property owner throw me out without notice?

The new owner took the property subject to the rights of the existing occupants, and it was up to him/her to investigate what those rights...

Are there particular aspects of a California landlord tenant agreement that have to be written into a rental agreement?

You can get general information on this topic by purchasing one of the Cal. landlord guides (e.g. Nolo Press), buying appropriate forms from the...

Can I get first month last month security deposit and cleaning fee all back?

If the rental unit is illegal, then the lease is void, and the landlord would not be entitled to any rent whether or not you/your daughter broke...

I am renting a room in my house on monthly basis.

If she is month-to-month, just give her a termination notice under Civil Code Section 1946.5. If she has an unexpired fixed-term lease, then...

I need help with these bugs can u help me with roaches?

You should immediately complain to the local code enforcement agency. If the agency cites the landlord, that will give you more rights - see e.g....

What can I do to kick these people out of my Grandparents' property? They have no rental contract and pay no rent.

Unless you have a power of attorney for your grandparents, it is up to them to act, because you would not have any legal standing. If you...

How do I get my adult son to leave when he refuses to?

It is arguable that the services he provided constituted a form of rent, and created a tenancy at will. You should seek help from a local...

The only deadline would be the statute of limitations, which would be at least a couple of years. So, you can choose to wait a bit, and see...