Tenants lease is up no longer want them as tenant

[Darla Goodband]

Hi all,

My tenants lease is up the 31st of May. I sent the letter asking if they were interested in another lease. 

They have responded yes. My problem keeping this person is, I have been sent Facebook post of her asking for contractors to do work. A video showing a broken fixture left on the foyer floor for the downstairs tenant to clean up. How do I go about letting her no we are no longer interested in keeping her?