She might move out on her own after you talk to her or she might agree to pay for the pool or increase the rent.  

@Taylor Larkin I agree with the other responses, try to work with her since she was up front with you, but make sure you are not putting yourself out either because you could take recourse according to the lease.I would try to work with her and definitely get any agreement in writing.

Yeah, I’m having a hard time believing you want to cancel because you had some “potential extra risk”, you did agree to let them do some work, as opposed to you think the house is worth more now.  

Hi @Christopher Gallardo, I agree since the rising housing market is pushing people more inland.

I agree with Will here. 

I got my real estate agent's license a few years ago as a way to get a feel for the market, and I emphatically agree it is a tough place to start!

This forces them to work together to find some sort of solution (whether it be a change of terms or agreeing to back out of the deal entirely).

I agree with Kevin here. 

@Jared Baker I agree with what @Courtney M. said, you don't necessarily need a "mentor".

I have a 4th renter that is very behind in rent, and so I may ask them to agree to pay their own water or just proceed to eviction. 2 questions. 1.