I94 expiring , I539 filing and new H1/H4

Agree with my colleague.

I 751 Application, shd i file joint or separate?

Part 5 of I-751 pertains to your children prior to marriage or children born between you and your spouse at the time of your marriage.

What is a proper answer to question #14 in form I-765 if I entered the U.S. as a passenger in a car through the border?

If you crossed the border without inspection, it would be an entry without inspection.

Can i leave the US freely before immigration places me in removal proceedings?

I agree with the ansswers above. You can leave whenver you want, the problem will be when you decide to come back.

How long does will it take to process petition, for a parent with permanent resident card that has 2 minor kids ages 16 nad 17.

The answer depends on the nationality of the parties involved. The waiting time fluctuates. Minor children and spouses of U.S. Permanent...

I am in the U.S. on a visitors visa my brother who is U.S. born wants to sponsor me how would we do this

The visa processing time for category 4 family based petition is up to 10 years or more and you will need to make sure you have not overstayed...

Question on adjustment of status

Unless you fraudulently answered the I-130, USCIS most likely won't outright deny your application initialy. Most likely, they will request...

Auto accident person at fault deceased no insurance who can other person go after?

I agree, the other party's insurance company can go after your mother's estate...

I agree with Mr. Lawrence.

My family just started to receive food stamps, and my sponsor will petition for my aunt family, will it affect their F4 case?

I agree with Ms. Tehlirian's answer.