The Estate administrator is incapacitated with a mental illness. The oldest daughter has Durable Power of Attorney over her father. Does that give her authority of signing her father's name on an estate property sale or sign her name as the POA, when she was not appointed by the heirs nor the heirs had renounced there administraton rights to her. Having Durable Power Attorney over her father only gives her authority only to her father's name but the father's is the administrator of the estate. Does the estate belong to the father's name when there are other heirs. Or does the estate need to appoint a new administrator. This questoin applies for the State of NJ