Inherited a garbage house

I have inherited a lake house that has a renter. Normally, this would be a good thing. But the home has been neglected for decades. There are literally holes in the roof, the furnace and water heater need to be replaced. The gutters are falling off. Siding is rotten and we’re not even gonna talk about the interior, with a single alcoholic female renter. I am currently executor of this well and this is the only item that was left to me. Am I allowed to have the estate replace some items before I have this transferred into my name. And if anyone has any other thoughts I would love to hear them. My furnace guy, a.k.a. my spy is there right now and I am absolutely in shock. Wisconsin