My Property Manager failed to notify tenants to vacate rental property

[David Blessinger]

Over a month ago I notified my property manager both verbally and in writing that I intended to sell the rental house so I need the tenants to vacate by April.  The house needs quite a bit of updating before its ready to put on the market so I'd already booked painters, new carpet, appliances etc. plus my own travel from out of state so I could fix most other issues myself.  Today I discovered that the property manager failed to notify the tenants so now the tenants legally have until May 1st to stay in the property.  I live across the country so this is a MAJOR inconvenience for me both financially and time wise considering I had already booked traveling expenses and lost out on work that I can't get back plus potential future lost work.  

The property manager apologized but didn't really have much to offer other than saying I could go ahead and list the property for sale and see if the tenants are willing to move sooner.  As previously mentioned, the property needs a decent amount of work and the renters don't keep the place that clean so I don't think its in my best interest to put the house on the market right now.  

Given the situation, what if any actions should I consider with the property manager or the situation in general? Thank you in advance for any helpful advice!