insurance broker requests new policy # prior to termination

[Daniel Bryant]

Good evening, I own a commercial property in NYC and recently sent a cancelation request to my insurance broker since I found a more affordable agent/plan.

He replied by asking me to sign a termination notice (understandable) but also requested that I furnish him with my new insurance name and policy number. Is that something I’m supposed to give him by law? Or can I chose to not give him that info?

Thank you