Can an R1 Visa holder change over to another type of VISA if employed by a different employee

Yes.

Withdraw F2 or Change of Status F2 to H1

You need to speak to your employer's immigration attorney. He should have an answer for you.

OPT ( Optional Practical Training ) Denied. Please advice what are my alternatives. I read motion to reopen hardly helps.

First thing you need to do before filing your I-290B is talk to your school's DSO. They may be able to point you to the right direction.

Salary advance prior to effective date of curricular practical training (CPT)?

You should speak with the employer's immigration attorney.

Trespassing ticket for walking through a lot that had a sign but I didn't notice it. court appearance required .Why?

Hire a traffic infraction attorney to assist you.

I am sorry for your loss. Your facts support a bad faith claim against your insurer.

Should I sign release?

Yes, it's customary for insurance company's to send a release letter and yes, you should sign.

Is false information on a speeding ticket grounds for dismissal of the ticket?

As a CDL license holder, it will be worth your time and effort to hire a traffic infraction attorney to handle your case.

Green Card, I-130, Derivative Beneficiary

I am afraid, the derivative beneficiaries of family based will not be able to get green cards. Unless sibling's spouse has a family member (parent,...

Shifting from F2B to F1. Please guide me.

You will need to notify USCIS of your new status once naturalized. Yes, more favorable one than the current status. Once you get naturalized, you...