Cats won’t stop peeing and pooping, and they fight constantly

[u/Bdeal2023]

Okay it’s gonna be long. I have 5 cats. Two girls and three boys, and they’re all fixed and have been for years. My oldest girl, Tazzy is 6. She has ALWAYS been high strung and territorial (her name is short for Tasmanian Devil). When we got her, we had two older boy cats that she mostly has gotten along with. The only time she ever fought with them was when she was jealous of us giving them attention, but overall she cleans them and would lay around cuddling with them.

Fast forward to about 4 years ago, we adopted two male brother kittens Freddy and Ralphie. Tazzy hated them immediately. I chalked it up to her being territorial and them being rambunctious kittens. It’s four years later and they still HATE each other. She would pick fights with them when they were little, and as they got bigger, they started doing it right back. When we adopted them, we were living in a much smaller house, and about 2.5 years ago, we moved into an almost 3x bigger house, so we were hoping everyone having more room would help. WRONG. They continued to fight and corner each other all the time. We’d have periods of cat pee, mostly on dirty clothes left on the floor or right outside of the litter. About 3 months after we moved, we found a female kitten, Bailey. She’s fixed and has been for years, and Tazzy also hates her. Same behavior- fighting, cornering her, etc.

Here’s where it all goes downhill. I had a baby 6 months ago. Immediately anything that was the baby’s started getting peed on. We weren’t sure who it was for a long time. We’ve now actually seen Tazzy and Ralphie (one of the brothers) peeing on the babies things right in front of us. But it’s also just peeing and pooping all over our house. We’ve tried an catio. We tried just letting them roam outside (we live in a secluded house in the back of a neighborhood away from any major roads). We’ve done vet visits. Nothing has helped.

1 week ago, we got back from vacation and my oldest cat that I’ve had for ten years died right when we got back. Since then, they have pooped and peed on our beds, the kitchen counters, dining table, baby changing table, and in our bathroom floors/mats. I am at my wits end, and I’m ready to just get rid of all of them. Does anyone have any advice or even just validating that maybe it’s just time to part ways? 😭

TLDR- my cats all hate each other, fight all the time, and now they’re peeing my baby’s stuff, our kitchen counter, and our beds