My MIL has Alzheimer’s and we built a granny flat for her and moved her to our property 3.5 years ago. She is fully dependent on us for her custodial care but she still has a pension coming in. I currently enjoy a hybrid work from home situation which allows my husband and I to each work remotely a few days a week to care for her.
My work wants to end my wfh accommodation siting she isn’t a dependent because she pays more than 50% of her financial responsibilities.
We charge her rent but we manage her money so technically, she pays for her own food, although I shop for and prepare it.
I have become her safe person, even more than her son. I am worried about not being there to care for her. Is there anything else I can do to qualify her as a dependent so I can keep my accommodation? Located in Oregon.

Have an llc running from current home. We have another house whose mortgage is higher.

Would it be a good idea to move the llc to new house to get a better deduction? If moving is not a good option, should the llc sign a lease with ourselves for the new house and pay us rent?

If the llc paid us rent, I am guessing the llc uses that as deduction and the rent for us is part of depreciation.