Am I able to sue a large car dealership due to lost wages?

It is possible as a consequential damage. Remember you have a duty to mitigate your damages.

when you report aggravated Assault to your Dr. and Physical Therapist and you ask for help call the police, and they don't?

They must report any assault and should certainly do so when requested.

Request for Entry of default

This means they have sued you and claimed to have served you and you have not answered. You should file for a motion to set aside the default.

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What can I ask the judge if a party does not show up or bring the required documents that were subpoenaed for trial?

You can request the court strike their answer and enter default.

If motion to quash service of process is granted, does petitioner have to refile if they want to add/remove something?

They do not have to amend or refine, the case will simply go forward.

Can I sue?

With only the harm you have suffered so far, the case would not be worth pursuing. Do report this to the County Department of Health.

Can I legally follow and observe a friend who is addicted to heroin and working as a prostitute to support herself and her b/f?

Unfortunately, unless the person is a minor or can be declared mentally incompetent, they may do as they please and your actions can be considered...

Can I be evicted in Calif. if i press assault & battery charges on landlord or sue in civil court?

Probably not but your attorney should answer this question for you.

Take the answer and then bring a osc re contempt. Or, simply, precede against the assets of which you know.