Convert to H4 after L1 rejection

I am currently on L1B visa. I have applied for extension and got RFE. My wife is in H1B visa.
I want to convert to H4 , if my visa gets rejected. how much time do I have to do this?

After L1 visa rejection if I apply for H4, can I stay in US just with H4 applied status?

I have no reason to believe that your L-1 will be rejected. However, regarding time, the rejection letter will state the grace period; generally it is 30 days. Let us not expect the worst, hoping for an approval…

Best wishes

Dr. Sandeep Shankar, Colorado Heights University,