Will i fall under H1-B cap or not?

Yes you can use the old H1B. Or you may file for a new one.

When is the best time to fill in an I 539 for change of status from B2 to F1?

I agree with my colleagues a change of status will take too long. You need to depart United States and obtain a F visa at the US consulate.

Yes adoption is permitted for permanent resident. Your question is better directed to an adoption attorney for the process.

Please help me, my father was charged with domestic violence. The charge was originally a felony but dropped to a misdemeanor

Yes he is facing removal proceedings. He needs an immigration attorney right away. You could find one through AVVO.

I'm a master's student in the US with J1 visa(with 2 years residency rule) and got accepted for PhD.Can I renew to F1 right away

You are supposed to fulfill your two-year home residence requirement or obtain a waiver first.

Does my B1/B2 denial affect my SEVIS and F1 reactivation?

I agree with my colleagues it shouldn't but it does depend on the basis for the denial.

Can my employer file GC in EB2 wen the job requirements posted mentions Bachelors degree + 3 years work ex, though I have Master

The job requirements must require a bachelors agree and An advanced degree or equivalent. You must have the requisite credentials as well.

Hello, I am an F1 student married to a US citizen . We are living together and I already got my 2 years GC.

You need to have the conditions removed first. After which you may proceed for you to citizenship, however, you should work directly with an...

Yes it is possible to be promoted and have a new EB2 petition filed on your behalf. The priority date for the third preference may be retained. Of...

Applying for GC with J1 waiver application.

The waiver needs to be approved before filing for adjustment or other visa classifications with the exception of the O visa.