Just how far will a power of attorney reach even when you don’t want it to reach all that far? It’s generally a good idea to have a written power of attorney you, in the event you become incapable of making your own decisions. The power of attorney will authorize someone to act for you and your best interests by conducting your financial and legal affairs. Many questions arise in the probate and trust litigation context regarding whether, and to what extent, a person can act for another under a written power of attorney. Often, questions arise as to whether a written power of attorney grants certain powers that are not specifically addressed in the written document.