Ok the other agent wants a copy of the new listing agreement. Why not send to them?
I hate to take the other agent's side, but asking for a copy of the new listing agreement is not unreasonable. They may not have received the notice to terminate the listing. In my office the agent can't cancel a listing, has to be done by broker or contract reviewer.
Frankly if I had no advance notice and got a call from another agent, that they were now listing the property I would be asking for documents too.
So I would send copy of listing agreement, and ask the AM for a copy of the termination of the other listing, This would put the AM on notice that I could not meet the 24 listing requirement due to circumstances outside my control.
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"Things may come to those who wait, but only the things left by those who hustle." Abraham Lincoln