I am a new landlord and my tenants just moved out of the property. The property is located in Plano Texas and a single family home.  

3 years ago I installed matte luxury vinyl plank flooring in most of the downstairs.  Upon inspecting the property after move out, I discovered the tenants had applied a polish/wax to the floors.

I had two flooring experts out and they both assessed there was no way to remove the polish/wax and restore to the matte finish.  The only option is replacement. 

My question is, are the renters responsible? Happy to provide any additional detail. Thanks in advance for your input.