Does California have jurisdiction ?

You need to register the NY judgment here in CA first. Once it is registered you can file a Request for Order to Modify it.

It does not matter where you were served, but it does matter by whom. The server needs to be anyone over 18 years old and not a party to the action.

Child custody time share

A lot would depend on why he did not see the children, and as to what changed since that time.

Child custody case after being served doni have to keep communication or can i wait for until everything is settled in court ?

Children should not be involved in the court proceedings in any way. I agree with attorney Routledge.

I agree with my colleagues. You can file your motion for a separate trial.

Unless you have some special circumstances, it is not likely that you will get a second continuance. You have to file and server (personally) your...

Divorce alimony/ half business?

Spousal support is a separate issue from the division of the assets, unless the parties reach a settlement on their own terms.

Can my ex husband sell thehouses even if iam still on title

That would depend on what your judgment states regarding the house.

I tried to look up a case for a dissolution with minor children case and I didnt see a disposition of that case

You need to know the state, and the county in which the dissolution was filed.

Can an absent father get joint custody when we live in different cities?

Based on what you stated it is highly unlikely that he can get custody.