I am a graduating student on F1. I am a STEM major and have never used OPT before. I have an approved consular-processing H1B petition from company A. However, I may not be able to join company A due to factors out of my control. The questions I would like to consult are:
1) Can I transfer the H1B to another employer without working for company A?
2) If I do not activate the H1B, can I still apply for H1B next year?
3) If I do not activate the H1B, can I still apply for OPT and the 24-month STEM extension?