I really need some guidance on legal obligations regarding my mum who went into a care home recently. My mum is self funding. Luckily her pension is enough to cover her care home costs. She owns and lived in her house before going into the home after a DOL - Deprivation of Liberty order was applied for her after medical and social services assessment - after a hospital stay - i.e. she did not have mental capacity to stay in her own home. My sister lived with her, but worked full time, so could only be with her in the evenings and weekends. My sister still lives in my mums house, and does not pay rent. She held a joint bank acct without my mum, but did not contribute to it. She helped my mum deal with her financial affairs, such as setting up Direct Debits to pay household bills, such as utility bills and insurance. My mu did not grant LPA to anyone before she was diagnosed with Alzheimers, so this leaves us in the situation where someone would have to apply for DeputyShip over her affairs. Is this absolutely necessary legally, and if it is not done, could questions be asked later by the Court of Protection about the handling of her financial affairs. I just want to make sure things are dealt with properly at this stage. Thanks.