Will there be an issue with my fiance not listing she lived abroad on her G-325a if it was more than 10 years ago?

The form asks for residences in the last 5 years.

Will there be a problem for my wife's F-2 application? If she could get the visa, will she have problem at the customs?

Please contact a qualified immigration attorney in your area. You xan do a search in avvo.

How do I get the latest i-94, or how do I see that my status has changed from H4 to H1 ?

You would get an approval notice in the mail.

Is the Skype marriage accepted in Florida, if the bridegroom and bride are both from the same country and fall under F1 & F2

The marriage has to be valid in Pakistan for it to be valid in the US. I would consult with a US immigration attorney.

If one was arrested then the answer is Yes. I would talk to an immigration attorney for further guidance.

My family doesn't know about my marriage, would that be an issue at interview time in the embassy?

You have to be truthful in your responses. The consular officer will be looking, among other things, to see if the relationship is a bona fide one.

If my wifes company petitions a green card for her, can I stay while it's on process even if my waiver of ineligibilty runs out?

I would pose these questions to the employers immigration attorney.

Will me and my wife be able to obtain a social security, or any legal paper in USA?

Please clarify your question for us to respond.

Which one should I pick? A or B?

If the petition was separately filed it would be A and if your sister is a beneficiary of a petition filed for your parents then it would be B....

What are my Options ?

I would see an independent opinion from an immigration attorney in your area. This public forums and address specific questions and or strategy