PD Noise Violation - Can a lease include a tenant consequence?

[Kristie Eddy]

Hello!  I received a lovely piece of certified mail today from Tucson Police regarding our inherited tenant receiving a "Red Tag" on their door for a good 'ol, loud college party.  I have no desire to evict this tenant as they were forthcoming about it, they pay their rent on time, and they are out this November regardless when their lease expires.  (Backstory: We own a 4-plex and have flipped two of the units and the exterior of the complex already. The other two units, including this one, have leases up in November at which time we'll flip the remainder of the property.)

A friend suggested we put some sort of verbiage in our lease regarding consequences for having a police arrival noise violation.  I'm not sure if this is the best idea ever, whether or not this is even legal, or what the consequence even would be if so.  Any BP advice on this please?