Hello Officer, I am Sunil, me and my wife we want to settle in USA. Please suggest the minimum investment required for same.

$500,000 for immigrating. If your country has an investor treaty with the U.S., perhaps as low as $150,000.

Hello, I have never done this before and am confused which forms I need to file. I would like to bring someone from Pakistan

She needs to file an application for a tourist visa. You can file a form I-134 affidavit of support.

Employer Sponsored Permanent Residency Application

Sounds like the advice is correct.

Can I fire my immigration attorney a few days prior to individual hearing?

You certainly can. The Immigration Judge may not be willing to give you additional time to hire a new lawyer though.

H4 spousal work authorization after new immigration reform

That is one of the proposals for the new law.

Got H1 while in India, did not get it stamped, currently in US with H4 visa No pay stubs- am I eligible for H1 transfer?

Did you change your status to H1b in the U.S.? If so, you are eligible to transfer. If not, it depends on the date, and you should see a lawyer.

Do I need to file the G325A along with the I-130 for a step child. Do I need to include copies of my Naturalization certificate?

No G-325. Yes birth certificate is needed and proof of your immigration status, and proof that it is a step child.

Can my wife sponsor me for a green card and she has that many felonies? I have NO felonies.

Marriage Brokers Act requires you to know about the convictions and does not bar her, but in my opinion and experience, you are looking for...

How hard is it for someone who comes to the US on a visitation visa to stay if they get married during their stay ?

The process is quite easy from the U.S. and quite costly and hard if she returns to Ukraine.

Three to six months.