If someone already has a family law case ongoing do they have to file in the same courthouse?

File it wherever the incident occurred. Good luck.

Can he get released before that ?

He could be released before you predict.

Does every 290 sex offender have to wear GPS in California

Not every 290 is required to wear a GPS, but they clearly want to keep track of you. Feel free to return to AZ if you desire less...

Sounds like you claim innocence! A lesser charge should be available, but you'll have to admit you did it. They'll want the money repaid too.

Can the three strike law be used to enhanced sentence on a misdemeanor?

No, but of course your criminal history will effect how they approach the misdemeanor manslaughter case.

Your chances of winning without a lawyer are nil.

How can I get my felony (1st degree burglary with a strike) reduced to misdemeanor in CA? Is it possible?Visible on background?

First Degree Burglary is non-reducible. You could file a PC1203.4 Petition for Dismissal. Good luck.

I don't know of any mechanism to obtain a hearing 15 years after the fact.

You should discuss this situation with your attorney.

I got sentenced to 1 year in LA county jail. I have no criminal record. Will I get release early?

Did you raise this question with your lawyer? In my opinion, you'll be eligible for 50% credits. Ask the deputies at the jail your release date.