Can I stay while L1A is expired but I-140 is under processing?

[AjaySharma84]

Hi,
I am here on my second L-1A visa which is expiring in March 2019 (completing 6 years) and company hasn't file for I-140 yet.

1) Let's assume that my company files for I-140 (under EB1 category) in next couple of months and by March 2019 it is still under processing (current processing time is 16 months for EB1), would I be able to stay/work in US in this case or the I-140 has to be approved before the expiry of visa?
2) Does my company has to file for something for leek me here?
3) I have heard that the approval rate of getting L1-Extension is very low after completing 6 years!

Please guide. Thanks.

[JoeF]

Unlike with the H1, it is not possible to extend an L1 based on an I-140.