I explained that this type of routine maintenance issue is not damage and is not our responsibility, but I can see that I will need help ensuring that she as the landlord is instead held responsible.

Even I have cleaning fee setup in Guesty, when I sync Guesty with Booking.com, Guesty zero out my cleaning fee.

2x gutter cleaning, lawn/snow maintenance, etc?

She was given two weeks to clean the place.

Cleaning fee should be based on cleaning the whole house.

A couple of things here and there are no big deal, but if you can't even take the time to clean up your question, why would you get the best answers?

Will steam cleaning do to sell?

(C) Criminal history is clean(D) Provide references and call the references2.

"Never buy weird if you can help it" is advice I routinely give, and it goes without saying to try and avoid creating a weird place that sticks out from what conforms to the neighborhood.  

An outdated home WILL rent as long as it’s clean and the interior is thoughtfully furnished with every day living in mind.