Tenants want new carpet

[Erin Cassidy]

Hi, 

I have a rental property that the tenants have been in for 12 months. They recently signed a new month-to-month lease. I chose the month-to-month option because I am considering selling the house maybe in the next 2 years. They intend to stay as long as possible. When they moved in the carpet had some staining but I chose not to replace it because they have 2 bull mastiffs. During the lease signing requesting new carpet. They say that it is embarrassing and that it had stains to begin with. Since they moved in, the carpet has gotten excessively stained so when they move I will have to replace it with either carpet or laminate. My question: do I grant their wishes and tear out the carpet? Do I state there will be a rent increase if I do so? I don't want the added expense but I want to keep them happy. I would probably opt with laminate because I know the carpet would take a beating with them living there. What do I do?