My sister age 69 moved here and started divorce. She gave my husband and me durable power of attorney. She since had mental problems and has some dementia. Her husband now wants his daughter appointed conservator and guardian. He now says he "wants to take care of her, so we should stop the divorce." (He has done a very poor job for 45 years.) I suspect that he only wants control back of ALL of the money. She doesn't really trust him and I certainly don't. I want her to have control over some money so she can have her teeth recapped. Some caps in front are off. He doesn't want to do it. (He's a dentist), I want her to finally have some clothes not bought at Goodwill and to be able to have control over her money. Will the conservatorship overrule durable power of attorney? Thanks!