Water damage on new bought rental

[Leah Spurlock]

I bought 11 houses in a package deal as is.  One of the houses had a active water leak with kitchen sink day 2 of my ownership.  This leak was likely happening before, going unnoticed, because there is damage to the kitchen wall and connecting bathroom. Now I have contractor saying they would recommend repair of bath and kitchen and preference would be that tenant be gone.  She's already late on rent.  Do I file insurance claim? If she pays her rent current, am I responsible for providing her housing while I am rehabbing?  Is it a option to give her 30 days notice to vacate and tell her I am selling (which I may)?  Contractor is mentioning probable mold. Thanks for any advise!