Will I be able to travel with TPS based advance parole (I-131) while I am in withholding of removal (A10) status ?

Not recommended. Wait until you are a US citizen

I would like to get married to a non US citizen (F-1 visa). How can I make him/her legal in the US?

Marriage ends your derivative standing. After obtaining resident status marriage is okay.

Is it safe to fly within the US with a DWI conviction?

You need to present valid government issued id. DWI does not prevent travel.

Employer threatened to terminate my job and revoke H1B as I asked for pay hike ?

This is not an immigration question. Moving to another list.

I-539 Extension

Yes he may file for 2nd extension while first is pending. In the event the 1st extension is denied the 2nd will be denied. There may be some...

I have question please?

The answer to your question depends in part on what needs to be proven. All the evidence requested may be required. Review the RFE in detail. After...

Denial of the O does not affect the H.

What does this mean?

You are either lawful residents if approved or pending resident status or H if you have underlying H status

You do not need to respond if selected. The record will exist regardless.

When I apply for green card can i have 10 years green card?

If you are married for two years at the time the decision is made you should receive the 10 year card.