Yes, you should apply for the F-1 OPT 90 days before you graduate or complete all of your coursework. You want as many options as you can get.

Assylum case pending but now married to an USC.

Yes, you should withdraw it since if it is denied you may be placed in removal proceedings.

How long does it take to approve H4?

You must have an attorney who is representing and that is who you should discuss this with. AVVO is really for people who might need an attorney.

What are the requirements for getting married in Mexico to a Mexican citizen?

You will need to talk to someone in Mexico. Or one of the Mexican consulates in Texas.

Is it possible to apply for DV lotery and I-130 at the same time?

Yes, it is possible to do both filings, assuming the DV lottery is open for applications of course.

That will depend on the requirements for the entity giving the license. It is not an immigration legal issue.

VAWA and approved I-360?

Assuming by "green card interview" you are referring to an interview based on your marriage, you will need to take the entire I-360 application...

How can i file for an extention and how am i sure i wont be harrased by immigration officer pending the determination of my ext?

You need to file a B-2 extension for everyone very quickly. You will not receive a decision in the next six months and will have to file a second...

Can I work for different employers, full-time positions, on a Work Permit (EAD card)?

That depends on what the EAD is based on. If it is OPT then no, you can only work one full-time or two part-time jobs, all related to your last...

How to get I94 adjusted to match Maximum Physical stay?

Doesn't your attorney know the answer to this? You can leave and return to get status to the end of your I-797.