HELP!!! My 2 year old is ruining an expensive leather couch

She pees on it constantly. I have cleaned the leather, used a citrus
based cleaner to drive the cats away (We have a 3 cat household) and
done various other things including pherenomes...no good!

Scooter did not do this before we bought the couch. She will not pee
any where else...aka other furniture, and I see her use a litter box
(we have 3) all the time

WHY IS SHE DOING THIS?

My wife wants me to get a CatScram and see if that works. If it does
not, then I will have no option left (since we dont want a $3,000
dollar litter box) then to take her to a no-kill shelter... and I
kinda love the little brat.

She is spayed, but this started before she got spayed. The other 2
cats ignore the couch, other then to sleep on it. She is the middle
cat in the household, and gets along well with the other 2. She is
also the only female in the house. Gizmo is our oldest, and Tiger has
only been in the house a few months (AFTER Scooter started the peeing
on the couch)

Any suggestions will be welcome. You may e-mail me if you wish

Thanks


Coyote Jack