How does a company sponsor a J-1 trainee visa?

I agree with my colleague. Review the J1 sponsor programs and requirements at www.state.gov.

Can I use a P.O. Box when completing the forms for Adjustment of Status?

I agree with my colleague. You may use the PO Box for mailing, but you must use your address for street address. Contact a US immigration...

Do I have to redo fingerprints when officer dragged on final decision?Or Should I be patient and wait officer to send decision?

I agree with my colleagues. Schedule the INFOPASS or contact a US immigration attorney for assistance.

Question 11, which USCIS office do I put? What dates excatly? The date i got approved or my OPT ones?

I agree with my colleagues. WAC is the California Service Center.

Will I have any problem in immigration regarding my re-entry to the US during this period? Is it safe to travel at this time?

I agree with my colleague. Contact your DSO and/or US immigration attorney before leaving the US.

What happen if USCIS loses my I130 file? Are there another alternative to recover the petition?

I agree with my colleagues. Contact a US immigration attorney for assistance with finding your receipt number.

I agree with my colleagues. Contact the DSO for the Sevis update and your wife can file a straight-forward F2 application. Contact a US...

What do I do if my Biometrics NOA is lost!?

I agree with my colleague. Otherwise, arrive at the appointment with photo ID and your other USCIS receipts - they may be able to find you in the...

Does he still get the conditional green card even if he receives visa after our 2nd anniversary or should i remind them this?

I agree with my colleague. You do not have to remind them. It will be included in their review prior to approval.

Does AOS based EAD invalidate OPT EAD?

I agree with my colleagues. There is no impact on the EADs.