Can I (the immigrant) fill out the Affidavit of Support as well, when applying for Green card through my spouse?

Yes, you can combine your incomes for I-864 purposes. However, I will caution you that the I-864, and the adjustment process is going to be...

Can I

It's better to enter on the H-1b if it is approved, rather than on F1, and then do another change of status to an H-1b. If your employer has not...

What should i do now?!! Send them again the papers of the second joint sponsor and explain more, or add a third joint sponsor?

Call an attorney tomorrow and get a consultation. Doing this alone is a recipe for denial.

Do I need to find an professional lawyer to help me with job description for green card application?

You may be asked to submit a draft. I'm sure if your company has a good attorney they will look at what you submit before using it.

H1B renewal

Will company be paying your prevailing wage? How will company cover losses? Work with a reputed immigration attorney for the extension.

Do we need to refile the I-130 and add the new household sponsor, keep the current one as is or is change of address enough?

You don't need to file a new I-130. Do a change of address. At the interview you can submit the updated I-864. Or if you get an RFE you could...

As long as the grounds for application are present you can renew. If your adjustment is still pending I believe you should be able to renew.

Immigration lawyer for review of forms?

A number of lawyers including our office would offer that service. You should call individually and learn more information.

I can apply for a waiver by I-601A? I have that chance is given me forgiveness via the I-601A?

While you are not eligible for I-601A as a wife of a permanent resident, you are eligible to apply for I-601 at the consulate. In many cases the...

Can you please let me know if I need to go for Visa Stamping again?

You should be okay to enter without stamping but this must be cleared with the employer's immigration attorney first.