Given that you and your spouse or another person own property jointly, the property will automatically be transferred to the survivor upon your death. Nevertheless, this will not allow the other person to sell or mortgage the property if you become incapacitated, but a Durable POA will. Normally, a living trust will allow the trustee to transact business for the trust if you become incapacitated. However, most people do not put all their property in the trust of a trustee. Suppose you own any property that is not in the trust; you should consider a DPOA for that property.