Unfortunately, K-1 visa is a single entry visa.

J1-Subject to 212(e) due to government funding from a government other than that of my citizenship or US

You have to work with your DSO to correct the DS-2019.

Should I change my visa from B1/B2 status to an immigrant status while In the U.S? Or is it better to apply while outside theU.S

You can change your status in the U.S. if your son is at least 21 years old. Since your I-94 has been expired, you may be subject to 3 year bar...

My sister B1/B2 visa was refused under 214-b.

You can also complete I-134 (affidavit of support) and send it to her along with supporting documents.

I got an RFE for my H1 Petition.

I agree with my colleague.

I made my check payable to uscis for my daca application, would my application be at risk

They will accept your case.

Evidence of bona fide marriage on I-130 - should we do a joint affidavit? What should it say?

I agree with my colleagues. Please read the form instruction.

If I dont have BA degree but enough work experience can I still apply for H1B visa?

I agree with my colleague.

F1 to H1 status issues

If an H-1B is filed during her 60-day grace period, she will receive the automatic cap-gap extension of her F-1 status, but it will not become...

OPT cap gap expired sept 30,2012 - H1B is in Pending status, Can I work after sept 30 ?

Unfortunately, you can not work after 9/30/2012.