I-751 interview notice received. Guessing will be denied, what should i do?

You will need to transfer the case from a joint filing case to a waiver based on either abuse, hardship, or final divorce. It is advisable to...

Can I work while waiting for a greencard through U.S citizen family member?

No you should wait until receiving the EAD (if eligible to have applied for one) or green card.

What can I do?

You will need a co-signer but will still need to submit evidence of financial support and complete Form I864.

In form I-130 question Has anyone ever filed a petition for the beneficiary?

Yes you would indicate that someone has previously filed for the beneficiary.

I have a friend in Pakistan and he wants to visit me in America how can he do this and is there anything I would need to do?

He may apply for a visitor visa if he can establish sufficient familial and financial ties to his home country to warrant eligibility.

Yes you may travel pending the oath ceremony scheduling and can reschedule once if need be.

What happens when notice of action comes for transfer to NVC?

You should wait until you receive notice from NVC that case was transferred with information about how to pay fees. Next steps depend on how long...

How long does it take for decision after you responded to an RFE for daca case?

You should have a decision within 120 days after submitting RFE but depends on case processing times and service center handling your case.

N-400 organization membership question (Part 12, Question 9)

You should list any applicable clubs or organizations and if evidence if not available you can notify officer at time of interview.

Is it okay if I filled my entire i765 form in caps?

That should not be a problem as long as you entered all information truthfully and correctly and the application is legible.