Each resident is required to have their own renter's insurance policy unless they are related/family and then they can be on the same policy.
Also, please confirm that the renter's insurance purchased names the Owner(s) as "additionally insured".
Please contact any of the below providers for renters insurance:
Lemonade Insurance Company
5 Crosby Street, 3rd FloorNew York, NY 10013
https://www.lemonade.com/l/renters