H1B extension with different job title

Hi Guys,

I am in soup because my current employer filed the original petition with an incorrect role, and told that amendment is not required. Now my H1B is up for extension and I see high chances of denial. I have the below queries. Can someone help?

Case 1: Handling extension Denial

a. Can I file H1b extension with a different job title from the original one?

b. How long can I stay after receiving the denial?

c. After extension denial, can I do H1B transfer to a vendor, whose 3rd party will be my current employer and for the same position? Is it best to do it after denial or before itself?

d. Can I file for H1B transfer with another employer after extension denial? Do I have to go back to my motherland and come?

Case 2: Look for options before filing H1B extension through current employer

a. Can I go for H1B transfer with a new employer before filing for an extension? And, by chance when H1B transfer to new employer gets rejected, Can I still file for an extension through the current employer?

b. When H1B transfer is approved will it also be extended by default, since my H1B is getting expired soon? Or extension should be filed separately?

c. Before filing for an extension, can I do H1B transfer to a vendor, whose 3rd party will be my current employer and for the same position? Is it best to do it after extension denial or before filing extension itself?