Do I have a case? Wrongful death my sister was shot and killed by cops in ukiah CA while said to be a hostage?

Contact a civil rights lawyer in Nor Cal.

How does a residuary of an estate get settled? How is commission for personal representatives calculated on a homesteaded house

You should direct your questions to your attorney. Without seeing the will etc., no one here can provide a detailed answer.

Id suggest you immediately locate local lawyer and set up a consult.

How would I go about gaining custody of my cousins son?

Contact local family lawyer. Probably he would go to you if his family agreed, or perhaps if child protective services stepped in and it was...

Was it a case?

Follow up with proper medical care if injured. get police report as soon as it is ready. Notify your ins co.

Is it common or legal to have the same public defender during a criminal case and a juvenile dependency case ?

Sometimes its best to have one lawyer handling all matters, so the best "global" result can be achieved. Not sure why you think there is a conflict...

Careless driving ticket recieved. My insurance responsible, chain reaction accident

Consult with local lawyer, and/or talk to your ins co. In most states, the car that starts the chain reaction is liable for damage to all vehs...

What should I do about a debt collection agency?

Did you notify your ins co when the incident happened? call them and see if they were ever contacted by the other driver, or her ins co. Were you...

Contact the state agency in the state where you were born, to see if this is even possible. and if it is, what you need to accomplish this.

Do I have a strong case for my hit and run?

Have you filed a police report? Let your ins know what happened and what info you have.