I have arrived US in August 14, 2015 from Nepal. So, am I eligible to apply for EAD in US?

You may be eligible using TPS. Talk to an immigration attorney to discuss the matter in detail.

WHEN CAN I APPLY US CITIZEN?

2 years and 9 months after your Green Card approval. Good luck to you.

I am on J1 VISA for graduate medical education and received hardship waiver. Can I change my status to O1 VISA here in USA?

You may be able to change your status. It depends on your specific facts. I would recommend you see an immigration attorney in person.

Waivers are very complicated. If you haven't yet, I would recommend you see an immigration attorney. Good luck to you.

I-485 Interview at Philadelphia

I would recommend you take an immigration attorney for the status adjustment interview. Is this what you are asking?

I have pending asylum case ,my work authorization will expires on 02-10-16 when I Need to renew it and how many days usually

90 days before the expiration. Good luck to you.

I have been deported on 15 Nov 2013, to Romania. I was in US since 2004. I was working for a Romanian, Constantin Matache.

i would highly recommend you see an immigration attorney to discuss your matter. Regards

I-485 Adjustment of Status

It seems perfectly within the timeframe. It is the reason why so many attorneys on this forum advice folks to hire an attorney as any minor issue...

I-864/I130-my fiancee is not working since last 3 months.How many pay stub require of petetioner ?

I agree with the other attorneys who have answered your question. I also recommend you see an immigration attorney to discuss your case. There are...

My wife's income(petitioner) is low < 12 K.Can I add my income in I-864 form along with Uncle's income total-3 person's income?

Yes, you may. I would recommend you see an immigration attorney as you don't want to see RFE from the USCIS as it will delay the application process.