Have had Ellie for about a year but not sure we're gonna make it to two years. She's been fixed and yet pees on walls adjacent to my neighbors who have cats (I live in a condo). She had the operation before she ever "moved in." To deal with that, I've had to lay down aluminum foil in those areas. The current issue is she pees on a wall near her box, of which gets cleaned 3-4x per day so it's not like she's dealing with a dirty litter box. She does this about once per week for the last month. To clarify, she actually stands outside a clean box and pees on the wall. At my wits end.