I need to file an answer to an eviction for non payment of rent at a business located in anaheim,ca

you need to hire a lawyer to respond to the complaint and try to negotiate with the landlord for you. You only have five days after being served...

you can file an amended complaint with the exhibit.

you cannot include a declaration in a demurrer.

What recourse does a defendant in a U.D action have if he never was a tenant, occupant or roommate of the legal tenant

you could defend the UD on that basis.

Summoned to court charged for a misdemeanor in "Vandalism", but did not "maliciously" / intentionally do it.

you need a lawyer. When are you going to court. I have handled a number of criminal matters in San Mateo County.

You need to answer the complaint. They will take your default if you have not answered the complaint within 30 days.

I have a month to month agreement with my commercial landlord and have found out that he has rented the property to another

the landlord is required to properly serve you with a valid 30 day notice.

I am a pro per Litigant in a Civil Case. What do I do if the Defense has not served me, I've requested filings and they ignore

your question is unclear.

attorney chen is correct.

How often can a landlord enter premises just to look at house. No repairs are needed, no complaints have been made etc.

i agree with attorney chen.