Hello,
In cases of inappropriate urination we always start with looking for a medical reason and start addressing the behavior possibilities. That means every animal urinating outside the box or inside in unwanted areas gets an exam and a urine check. It might be that one has a urinary issue and is soiling and the rest are following the same behavior because the area now smells like a place to pee. You have to clean so thoroughly they can’t smell residual urine (and remember their noses are so much better than ours!)
Also rhe stress of moving might be contributing. Or even the stress of the other dogs dementia might be a contributor. I use a lot of calming agent like feliway and DAP and add more litter boxes. Different kinds of litter and even try different kinds of litter. Try not to get angry at them. They think they are doing something completely appropriate and never do anything to make you upset or for spite. (Only humans do those things). If all of that fails you can try an oral behavior modification medication. They have worked well in many cases I have had.
Hello,
For these cases I talk a lot with owners about trying to identify the underlying cause. Often it is poor diet and sedentary life but there are also diseases and illnesses that can contribute. If able start to learn how to palpate your cats colon and feed watery wet food and use the fiber supplements and laxatives. Exercise is also very important. For these cats we start training in a harness to go outside for walks. I feel that if you don’t increase environmental enrichment and stimulation they won’t start moving.
But before all of this you have to remove the obstructive feces. This often needs a vets help. Call rescues and shelters and keep asking for affordable help.