Leaving a neighborhood is possible…even for leaders! All you will need to do is tap on the "leave" button and you will get a pop up asking if you are sure.
From there, the co-leader who has been in the neighborhood the longest will automatically be appointed as the new leader.
So, no need to worry, the neighborhood you created will be in good hands!
…unlessyou are the only one in your neighborhood, and in this case, your neighborhood will not exist anymore once you leave 🙂