Do I have to have affidavits for joint I 751 filing.

Not absolutely required. But will help. It can be from F-1 or H-1 holder. Citizenship/GC is not a requirement.

On the forms the joint sponsor has to disclose if he/she sponsored anyone else before. It is simple maths. The sponsors of your Brother's Fiance...

If I get Reentry permit for 2 years; can it be used multiple times during travel to US, while the permit is valid?

Yes, it can be for multiple trips. You can stay abroad for extended periods. In the application, you must explain your permanent resident...

Adjustment of Status on VWP

You spotted it correct, that it is the preconceived intent that could be an issue - and could be viewed as fraud/misrepresentation at the time of...

H1B filing fees not cashed yet. Not selected in lottery?

It is an ongoing process. You have to wait a little more to find out. To early to conclude.

H1B work visa to GreenCard

Timing depends upon if the position and you qualify under EB-2 or EB-3. The first step is PERM/Labor Certification, that will take approximately...

Do I need to file another petition?

You are in authorized stay (if you timely filed - before expiration of previous B status), and there are no issues of overstay (if you timely...

Unfortunately Not. That is without doubt equivalent of work/employment and it could get you in trouble. Your acts of hiring personnel and managing...

H1b and how to deal with termination?

Technically you are out of status since your date of layoff. I am not sure why you would resign, without putting up another H-1B application in...

Do I need to be working for the employer who files an H1 B visa for me? Right now I am on OPt and working with others.

In my opinion, you can get an updated I-20 from DSO - reflecting the cap-gap extension period and your OPT employer. It can be different than H-1B...