I would be willing if it only involved her fixed income. But we recently sold her house and she now has a large sum of money in her account. If we manage it carefully she can live comfortably for several years. If not, she will not be able to afford where she lives now and anything else will be a major step down.
Her years of depression/anxiety have made her dependent on several drugs - Klonopin and marijuana specifically. She is not allowed to smoke where she lives now so I suspect she’s having withdrawals and wants to move somewhere she’s free to smoke. However, although the pot helps her mood wise, it also makes her unsteady on her feet. She’s suffered several falls - broken back twice, broken foot, bruising literally from head to toe. She is now in a very safe, upscale senior living center. And she’s turned on me accusing me of keeping her in the dark about her finances. What do I do? Turn it all over and walk away?
Meanwhile, try to set her up for success by putting as much on autopay and direct deposit as possible.
She might be a good candidate for a single premium immediate annuity for a fixed period that will direct deposit into her account just in time to pay her rent. (NOT a variable or "investment" annuity.)
So it is in the end simple. If she is of sound mind the choices are hers. If compromise as I suggested does not work, and she wants control, then explain to her that you will walk away if she ruins her financial situation, and that you will never discuss it again, and when she is thrown into the worst facility that exists you will not mourn the fact, that you will visit, but you will realize she made her bed, and it is hers.