Hi everyone, I’m a relatively new bunny owner. I had one before as a teenager, but I didn’t really know what I was doing, and although I don’t think my bunny back then was particularly unhappy, I want to do everything properly 12 years later. 
I just adopted my beautiful bunny, Liv, about a month ago. At the shelter they told me she had good litter box habits, and they weren’t lying — I put together a bunny condo for her, and after some initial issues, she’s been really good at peeing only in her two litter boxes. However, whenever I let her outside, she always pees on the carpet. For now, she only has access to my bedroom an en-suite bathroom. (I can actually keep the door to the living room open though, as she doesn’t like going outside on the shiny floorboards — can’t blame her, she’s mostly just sliding around on her fluffy paws.) I tried restricting her to a smaller space in the bedroom, but that didn’t really help either, cause the fence I put up was low enough for her to jump over. (I ordered a taller X-pen though, so maybe that will work.) I also put 4 litter boxes in different corners of the room in addition to her in-condo ones, and she has been using them, but she still goes to other places, too.
Of course I read all I could find already, including the tips on this site and on this forum, but I still haven’t had much success. I’m almost always too late to catch her in the act, and even when I’m not, my firm voice or gentle nudge doesn’t stop her, cause she’s a brave little bun and not afraid of me at all. (Which of course I love in general, but it’s not very helpful in this case.)
Because she’s so good with her boxes inside her home, I can’t help but think it’s a territory issue. She is neutered, and over a year old. Also adorable (see picture) and super friendly, so I’m never mad at her for more than 5 seconds, but I can’t keep buying giant bottles of Nature’s Miracle forever… I want her to be an active part of my life, and not just sit inside her (pretty swanky!) condo when it’s not specifically her playtime.
If anyone has any tips that are not all over bunny sites already, but worked for them, please let me know!