What symptoms or tests are required for dementia care in a memory care facility?

Mom has a long term history of depression which was controlled until major for past few yrs when we began to reduce her meds to see if dizziness would subside. (OCD, depression and bipolar meds) She also may have not been taking some of meds when subtle symptoms started a year ago. She recently was in psych unit which determined she was exhibiting more attention getting behavioral issues than med imbalance. (conversion disorder) Unfortunately when she was discharged her condition at home was by far worse, with symptoms that didn't exist for yrs. Maybe she didn't take meds in psych unit, she easily finds ways to hide them. Since home, She has pacing anxiety, OCD rituals and delusions hearing voices, very difficult to reason with. Her out patient psych Dr put her back on Seroquel and Remeron, low doses since she is 80lbs. She has slightly improved, but OCD is worse. She was never incontinent and now is, she no longer enjoys coloring, or praying and lost interest in her small routines replaced by OCD rituals. Eyes closed, won't touch things unless hands are covered, hand lotion and kleenex rituals, changing clothes during her night sleep, demands that her drink water is not hot enough. Has very specific orders how she wants things done. Is this a dementia decline? Beginning of AD or should more meds be given for OCD? Yet we know these meds often to upstart will make her even more anxious. She's restless, yet is tired all the time. She had memory tests done recently however she scored fairly well for 88yrs. Would she qualify for memory care facility? and there's the chance that they will reject her admission BC she has depression w delusional, OCD issues?