If I may verify the processing times involved in NIW. Since it falls under EB2 category, I am assuming it may be a long time before I can get my EAD card and be able to change employers. Also, I want to confirm if there could be issues if I change employers during the process - If so, I'd prefer to change my current employer before starting with it.
You can change employers any time if you are a self-applicant and will continue to work in your stated area of national interest. But NIW priority date will take the same time as a normal EB-2 application does. See:
Note: This is a verbatim transcript of the referenced audio/video media delivered as oral communication, and, therefore, may not conform to written grammatical or syntactical form.
The U.S. Department of Homeland Security (DHS) will publish a final rule Friday, March 11, 2016, to strengthen and enhance the Optional Practical Training (OPT) program for international students in science, technology, engineering and mathematics (STEM) fields.
The Department of Homeland Security (DHS) proposes to amend F-1 nonimmigrant student visa regulations on optional practical training (OPT) for certain students with degrees in science, technology, engineering, or mathematics (STEM) from U.S. institutions of higher education. Specifically, the proposal would allow such F-1 STEM students who have elected to pursue 12 months of OPT in the United States to extend the OPT period by 24 months (STEM OPT extension). This 24-month extension would effectively replace the 17-month STEM OPT extension currently available to certain STEM students.