That's sounds so stressful and unfair. I have heard so many similar stories to yours from friends who are all decent great tenants who I'd be more than happy to leave my house to, and yet they get screwed by RE like its a hobby.
It's sucks that you have to play nice.
Is there even the remotest possibility you can contact the house owner. Most of them would be surprised to hear their property is being neglected by the RE.