Tenants dog scratched doors, what to do?

[Jimmy S.]

Hello

I have 3 bedroom doors that all look like this.  I used a wood marker and it seems to help out alot . How would you charge them for this? It will take me a long time to do 3 doors or should I get a estimate from someone else.  I dont mind doing it my self but im not doing it for free and not sure how to charge them.

thanks