How can I change my sons name..

It appears from your comment that the "state" did the paternity test that a paternity case has been opened. If that is so, the court can order...

Where can I research California Palimony Laws?

You can also look for California law involving oral or implied contracts, which is really the law that applies in "Palimony" cases.

Your attorney MUST give you a detailed accounting of his billing/fees upon your request. I would send the request in writing and give him a set...