@Wayne456
Your post is confusing. You say you have two bad reviews from people who didn't reserve and didn't show up, but I can only see two reviews total on your profile, so I assume those are the two you are talking about?
What do you mean they didn't reserve? How did they book your listing then and how were you able to review each other?
As for not showing up, possibly that could be the case with one of these, but it sounds like they did at least show up and didn't feel the area was safe, so maybe they didn't stay. Is that what you mean?
As for the other one, clearly she did show up because she not only wrote a review about the listing, but you left a review for her saying she was 'cool', but then accused her of various things in your response to her review. How could she not have showed up if, as you said, she left cat litter, stains and syringes? If she did actually do those things, why did your review for her say she was cool?
As your listing seems to be suspended, I can't comment on it specifically, but you have no positive reviews to counter the negative ones, so something is not right. There is nothing you can do about your location other than to describe it accurately, but you should otherwise take on feedback from guests and see if there is anything valid there that you could maybe improve.