PJIANG 和小白兔请进：技术问题

Technical Question for pjiang:
company A sponsored my EB2. 140 approved. 485 pending 1 year.
Working at A company and live with wife at M state. Will change to B company at N state.
Wife will stay at M state at same address to finish study.
questions:1. Should myself change address after go to N state?
2. Should I notify INRS for job change?
3. Company B will sponsor EB-1B. Can I have both EB-1b and EB-2?
Thanks a lot!