Can I call the police if my brother is being treated badly?

Agreed with colleague here. Call police

Possibly. Consult with a personal injury attorney to engage in a more thorough review of the facts.

Fighting eviction - have shown good faith throughout.

It’s unlikeky a judge would evict you based on this alone. However, if there is other history then the odds increase.

Yes, they can obtain injunctive relief if they meet their burden regarding your Airbnb use if the rules prohibit it. opining on the rules would...

Refer this question to her attorney who is being paid already to address such things.

What form do i need in order to respond to a court summons by mail for the county of san bernardino?

That depends on what your contentions are in response to the allegations they made in their lawsuit. No attorney can properly advise on this...

Can I ask for an insurance claim?

You can always make a claim. The issue is whether it gets paid. Read your policy regarding the claim reporting timelines. You probably can.

You can sue but you won’t be awarded anything.

Yes, but the lien on the house may be a stickier issue. Consult with a bankruptcy attorney

How do I fight a landlord who's filed a three day eviction notice for breaking the lease when its not true?

If he already served a three day notice to quit an eviction proceeding will probably follow shortly and they are usually on a relatively quick...