My wife I-485 adjustment pending and i received US Citizenship. was told that by getting citizenship her 485 will be denied.

I don't believe I understand the scenario completely. You may want to discuss this with an experience immigration attorney.

L1B to H1B conveersion, L1b and I-94 expiring before october

Considering your scenario, your company may have seek L-1B extension for you. Also they may want to consider premium processing so you do not have...

Is 2 week notice for quitting a job really required?

I agree with Benjamin and Neil. As an at-will employee you can quit anytime. However if your employment contract provides for 2 week notice, you...

Hello - I have a question related to H1/LC and GC processing.

Facts are insufficient. It is best if you can schedule a meeting with an experienced immigration attorney to discuss your case.

Coming back to the U.S.

If the time allotted by the CBP Officer is insufficient, you may want to apply for an extension. Consult with an experienced immigration attorney...

How much is lawyer's fee for N400 (applying for both husband and wife)?

Attorney fees differ depending on the complexity of the case and attorney's expertise in the area of practice. Call at least three attorneys to...

USCIS....Attorney Accompaniment.

Yes.

3 pay stubs along with letter of job verification issued by your employer.

What happens if my company applied for my H1B visa extension when I was not in USA? Will my extension petition be rejected?

I don't understand why you would conclude that you not being in the U.S. is the reason the USCIS is seeking further evidence on the H-1B petition...

Use of work experience letter in the green card process ??

If you say you got EAD, I am assuming you concurrently filed for I-485 along with the I-140 filed by the company. If the I-140 is approved and it...