Pest control responsibility

[Murali Ponnaluri]

Need your advice. This property I bought have current tenants, so we inherited them as tenants. So recently we received a maintenance request regarding the rats/mice. I reviewed the lease agreement, and it does not expressly say anything about whose responsibility it is. Plus this is a duplex so we might have to do pest control for both units. I appreciate your advice.  By the way it is located in New Hampshire. Thank you all!

Part of the lease says "The Tenant will, at its sole expense, keep and maintain the Property and appurtenances in good and
sanitary condition and repair during the term of this Lease and any renewal of this Lease."