<human>: Initially posted on r/cats. I'm desperate. 
When I was in the 2nd grade (I am currently a 10th grader) my mother surprised our family with two cats that were 'getting to old to be adopted'. We've had these cats for 8 years and throughout those years they've peed on anything left on the floor they can claw at. This includes but is not limited to clothing, backpacks, and blankets. My parents have put up with this (though vocally stating how much they hate them) for our sake but recently they have peed on carpeting and furniture and this is my parents' last straw. 
We all love these cats and they're not 'bad cats' in anyway. One of them is skittish by nature but other than that and the urine problem they are loving animals who have been considered as part of the family in my eyes. These are my first cats and the only childhood pets I have left that haven't passed away. For now, my mother has banished them to the basement unless we can find a way to stop this, or else they'll go to a cat rescue where no one will adopt them. 
Reddit, I'm writing this through tears, please tell me how to get them to stop, or any advice that pertains to this issue. If this helps at all, one of the cats lives half of his live outdoors and uses the bathroom out there as well, we also have two dogs that push their buttons sometimes but ultimately they get along.

Can you condense the text into three sentences or less?
<bot>: My parents are going to give my two brother cats away to a cat rescue (essentially killing them) if they don't stop pissing everywhere. PLEASE HELP!!