I live in Portland, OR, USA. For the past couple of years, I've been taking Instagram pictures of cats in my neighborhood. All the pics are taken from the sidewalk or the street. Some of them show parts of people's houses along with the cat in question. I've been thinking of taking some of my favorite ones, writing a little fictional story about each of them, and making a little print-on-demand book or chapbook out of them and selling them online or in local shops.
The major thing that's stopping me is: what if someone recognizes their cat? What legal right do I have to sell these pictures for a (probably really small) profit? I've been googling and haven't been able to find anything that puts my mind to ease. Lots of info on whether I can take the picture at all (I feel pretty safe there since I was in a public space) but not much about making commercial use of them.
What commercial rights do I have to these cat pictures? What rights do their owners have?