What form do I fill out to change my last name for all my court documents in my Family Law case?

You cannot change your name on a case that you are reopening that has already been filed. You must continue using the same names and case numbers...

After Responding to an RFO and want to make my own RFO, am I still the "Respondent"?

You remain the Respondent and the case number stays the same until the case is completed. You should consult with a Family law Attorney who can...

If there is a court hearing scheduled for child custody or visitation you will be sent to mediation by the court prior to the court date. If you...

When I pass I made a cheap will and had it notarized .?

You should have a trust in place if you want to avoid probate. A notarized will is not going to help your beneficiaries much.

Apply H1B Petition from overseas while waiting in GC family sponsored visa backlog process

Yes the Employer may file an H1B Petition for you.

Can I contest against my step sisters on my dads will?

If these assets you are speaking about are your father's assets than yes he can leave it to whoever he wants as the attorneys above has stated....

I am signing a contract but I don’t know if I need to put down my name on my passport or my changed married name.

I would sign with both names on the document in order to prevent any misunderstandings in the future as it seems you are still using both names.

I-130 Processing Time

You can check the time on the State Department Visa Bulletin as stated above, but retaining an Immigration attorney will probably be your best help.