H-4 visa stamp expired, L-1B rejected. Critical situation

[maxy_spy]

Hello everyone,
I am in a very bad situation. I got laid off recently and I found a new employer who is working on my H-1B Transfer paperwork. My current payroll is till 29th Oct so I will be technically employed till then.

Meanwhile, My wife was on H-4 visa and was working on H-4 EAD and she went to India 2 days ago to get her L-1B visa. Her interview was today and she got rejected so that leaves us in a very bad situation. Since her H-4 stamp is expired. Now, I wanted to know what options do I have to bring her back to USA?
1) can she apply for fresh H-4 visa in next 3-4 days and get the stamp to come back?
2) is the I539 independent of the company I work for?
3) is there any other option apart from this since L-1 individual visa will take longer to file

My I-797 is still active with the current employer and I could buy a little time from my new employer. please let me know as i have to act on this asap. I am feeling frustrated and depressed with all this mess

Thank you in advance

[dhsa4]

I have experience in just one case - I-539 is NOT independent of I-129's employer. Good Luck.