1. I work for an MNC, who filed my GC in EB1C, I-140 approved 2 years back, I-485 filed almost 2 years back, completed I-485 interview an year back, also holds a renewed EAD/AP card. My company laid off me recently, so my L1-A will soon get invalid. I got an offer from another company in similar role and responsibilities (SOC code: 113021), so planning to move using AC21 portability. However, my first employer was in e-commerce, whereas new employer in banking domain. So, my new job offer compensation will be 10% less than the salary mentioned in my I-140/I-485 by my current employer.
2. My case is genuine as my current employer is laying off and my role got impacted, with Coronavurus pandemic, it's difficult to find new jobs. Though the roles and responsibilities (role as people manager) will be same, but domain and industry are different and hence, salaries will be different in different industries.
3. Within how months should we file I-485J and what documents do I need to provide to my new employer when joining the company?
4. By the way, my current employer suggested to use AC21 portability to move to any new employer and confirmed that they wont cancel my I-140.