False Double?
 

A1 is shooting 1st shot of a two shot free throw. During the 2nd throw, my partner calls a common foul on A2. A1 has the ball when the foul occur. Team B is in the bonus. What do I do?

I clear the lane to let A1 shoot her last shot, and went to Team B and let ther person who got foul shoot the 1 and 1 and let that be my POI. Did I get this correct?

Yep.

So the ball is put in play by team B below A's basket with a chance to run the end line (assuming A1 made her second short)??

No, A1 shoots her shot. Make it or not, we are going to shoot the bonus on the other end and that will be my method to get the ball live

That would be true if B wasn't in the bonus. Since B was in the bonus, line them up at the other end and let B shoot the FTs.

Clear lane for A1's second short, the line everyone up for B's 1 and 1. Ball become live just as it always does after a 1 and 1.

Correct?

It's possible that the ball didn't become live after the "1 and 1" (sic), depending on the game situation.

In the sitution presented, it clearly becomes live (and then dead again) before the "1 and 1" and live to begin the "1 and 1"