I'm trying to understand the possibilities for L-1A visa holders changing employers. Here's the specific scenario:

• Current status: L-1A visa holder working for Company A (e.g., Apple)
• Potential new employer: Company B (e.g., Microsoft), unrelated to Company A
• Employee has only worked for Company A throughout their career

Questions:

1. Can Company B sponsor a new L-1A visa for this employee, even though they've never worked for Company B or its affiliates before?
2. If possible, would this be considered a "transfer" of L-1A status or an entirely new L-1A application?
3. What are the key requirements or challenges in this scenario?
4. Are there any official USCIS sources that specifically address this situation?

I've found conflicting information online, so I'm hoping to get clarity from those with experience or expertise in this area. Thanks in advance for any insights!