You / they can put her in a crate to keep her from peeing all over the place, as a short-term fix. 36" is large enough for a cat + litterbox. Let her out under supervision only.
Inflammation and/or UTI can cause them to pee around the house. And stress can lead to inflammation. My female had a UTI that started it, but we could not get the pee issue solved as easily as just clearing up her infection. So, she lived in a Midwest Homes for Pets "Cat Playpen" (I call it The Cat House, lol). And was put on Buspar for anti-anxiety and Dasequin for Cats for reducing inflammation and pain r/t her urinary tract.
Elsewhere in this cats forum, I posted the names of the 2 anti-urine products that we used. Urine Away and Urine Off, maybe? Nature's Miracle is not much good, in my experience. eta: Cat Pee Odor Eliminators