Tenant forfeited security deposit with repairs needing to be made to the property.

[Mike Holland]

I am selling a single family home in Bellevue,  NE in which the tenants refused to allow showings,  shorter notice showings, and lock boxes for the last 30 days of their lease.   In the lease they're are stipulations for all of these things to occur and if not the lease will be forfeited.  

They vacated the premises yesterday with significant painting,  patching,  and repairs needed.  Again per the lease, all such repairs required professional work to be accomplished.  They did not have these professionally fixed prior to lease termination. In addition to this, there were items in need of repair that they did not report by the terms of the lease that got worse because of the lack of reporting.  

With the security deposit being forfeited as a penalty for delaying/refusing entry; costing us potential buyers and an extra month on the market, can the tenant be billed for the repairs for the damage to the property.  As a whole,  I'm estimating the repairs to exceed the amount for the security deposit.  

Thanks in advance for the assistance.  

Mike H.