I was charged with a misdemeanor (failure to perform duty of a driver) the judge reduced it to a violation and minimum fine.

Get copy of sentence and contact DMV. You do not elaborate on your driving record but on its face the requirements sound extreme.

Can I Videotape an officer if I get pulled over?

I would not advise such conduct. Cameras and phones can look like weapons.

If I plea to a lesser charge for speeding. Do I have to immediately pay for the fine after the deal is made?

You can arrange payments.

I was issued a bench warrant for $5050 for missing my arraignment hearing in Washington State. Am I likely to be arrested?

5 years ago? You have to get on calendar and clear the warrant. Consult counsel.

My dad just get out of prison, he got a new job in factory, after couple of days they found out that he was a prisoner and they

The argument goes that he withheld info and he would not have been hired had they known.

Yes, or sentence can be imposed for the violation.

Possible. Have him ask his attorney.

What is the date of docketing? Is it my discharge date or the date I went to court?

Court date.

When one receives a change of venue, will there be different DA?

No,same players, different location.

My brother got arrested two months ago for possession of marijuana and he got accused of possession and selling

Consult witha good criminal law attorney and an immigration law attorney, in that order.