So cat lovers, riddle me this...

[mockmonkey]

13. Six cats, 5 litter boxes

I have very large litter boxes for the cats. Three of them are together in one room. There is another single one in another room and the last is in the bathroom.

They appear to like to poop in a particular box and pee in the others but not always.

There could be an issue with her not liking the litter your friend buys. I personally hate any scented litter because they just spread that smell through out the apartment. Having only one cat gives you the opportunity to try different types of litter and make sure the box is not too small and some cats do not like the covered boxes.

One large box might work for your cat. It's best if you clean it twice a day otherwise two boxes with one in a secluded area for her privacy.

I have a cat drinking fountain and a bowl of water for the cats. Some like one or the other. Wet cat food is best to keep them hydrated especially if you live in a hotter climate. The food/water are best in the kitchen area away from the litter boxes.

One last thing. Some cats prefer to be up high so a cat tree would be great and if she is pooping on a counter it sounds like she prefers a higher place to feel safe.