Im 36 and a 16 year old keeps ringing my doorbell and running away

Beware threatening to kidnap someone. Best to just ignore the conduct.

Letter civil demand in CA ?

IGNORE the civil demand letters entirely. They'll never sue you. DO NOT ignore any notice to appear in court, if received.

My DUI Case is almost a year old can I get it didmissed?

Asking the court for a Serna Motion is a WASTE of time, yes. Where's your attorney in all of this?

If I gave a 30 day deadline to get a case in mitigation and my lawyer did not get it done, I reached a settlement on my own ?

I'm unclear about what happened here, but you need to discuss this with your attorney.

If the perpetrator was not competent at the time of the crime, how long does the court have to complete a competency evaluation?

Her attorney will inform the court if she appears to lack competence.

Can i do it before court?

What exactly are you seeking to have the lawyer do? This doesn't make any sense.

What if the person who filed a case to you is dead?

Many more details are needed, but don't post them here--go meet with a local attorney.

Means he'll be in jail for roughly 10 days on a "flash incarceration."

I got dui and chil endangerment sister age 13 was I had in the car

I'm guessing you'll be charged with DUI and Child Endangerment. Time to get a good lawyer and get into rehab.

Inhospitable, but not illegal. Sounds like they voiced their opinion.