When a Power of Attorney stops working in Nebraska, families often find out the hard way that the document isn’t a force field. Banks may refuse to honor it, siblings may dispute the agent’s decisions, or a loved one’s medical and safety needs may escalate beyond what informal planning can handle. Nebraska courts don’t step in just because things feel messy, though. Under the “least restrictive alternative” standard in Neb. Rev. Stat. § 30-2620, a judge can appoint a guardian or conservator only when there is clear and convincing evidence of incapacity and court involvement is truly the minimum necessary to keep the person safe and protected. This guide explains the most common “POA failure” scenarios, what the 7-business-day bank response rule means in practice, and how families can reduce the odds of a costly, contested guardianship later.