About 4yrs ago a man chased my husband off the road smashed his car up than proceded to beat his car with a two by four UVisa?

Yes.

A new waiver will be affective on March 4th.Would that help my waiver be approved faster? 6 months away and want to know.Thanks

It does take time to put together a good waiver. It should have been done before the interview overseas though. Meanwhile, if your spouse is out...

I obtained my EAC and SNN in 2012 , I worked with a made up SNN in 2011 , Can I file my taxes for 2011 with my new SNN ?

Speak with an accountant.

Immigration lawyer

Yes.

Do I need a tax attorney or an immigration attorney?

Tax attorneys deal with IRS issues.

I am a U.S citixen, my brother is in the U.S in a student visa, can he ably for adjustment of status and not to move back home?

Yes, if he has an approved immigrant visa petition with current priority date. It will be about 10 years before any visa you file for him becomes...

Political asylum and criminal charges .

If your husband's asylum is denied due to the arrest, and you have no other application for relief from removal, you may have no option but...

Could I henge 1 / 2 visa to green card or another visa to stay in USA ?

US Immigration is based on someone petitioning you. You need an employer who intends to hire you, or a US Citizen, or in some cases permanent...

What is the minimum period of petition validity given when I am applying for an extension

It depends what your employer is filing to extend. If you mean an H1b, it is controlled by the validity of the Labor Condition Application.

Yes, it is not a problem at all.