Can I have my wife citizenship revoked in Texas?

Unfortunately, there's no way to take her citizenship from her. However, you should retain an experienced family law attorney.

Yes you can hire a personal lawyer to represent you.

Can my cousin who just recently got her visa cross my 8 yr old son who is a US Citizen from mexico,he went in vacation with her?

Ensure the cousin has a notarized letter from the mother giving authority to travel with the children.

Moving to USA

Maybe. You may also qualify for an investor's visa. It is advisable to consult with an immigration attorney to discuss what your options are.

How to apply for f2 visa USA on STEM?

It is advisable to retain an immigration attorney to assist you on this matter. The attorney will review the prior denials and advise you accordingly.

I have biometrics appointment with my 2 kids ( 8 and 4 years old). ?

You can go and speak with a supervisor. Do you have copy of their passports? If so, take it with you as well.

Can I reschedule my wife’s naturalization interview date due to family emergency leave ?

You can write to them explaining the situation and asking them to reschedule. Make sure you send it ahead of time and track the delivery.

What do I do if there was no damage and everyone was fine?

It is advisable to retain a personal injury attorney before you speak to anyone.

It is advisable to privately talk to an immigration attorney for specified advise.

You already have an attorney. Your lawyer is the best person to advise you on this case.