Either a family attorney or an estate, or wills, attorney can help you prepare a living will, either as part of your general estate planning or as an individual document. The cost typically ranges from $250 to $500, depending on your attorney’s fees; some charge by the hour, while others have a flat rate for writing a living will. Some states require living wills to be notarized, which adds an average of $5 to $15. In a living will — also called an advanced healthcare directive — you specify whether you want to be kept on life support if you become terminally ill or lapse into a persistent vegetative state. You can also answer other important questions in a living will like your preferences for tube feeding, artificial hydration and pain medication in situations when you cannot communicate your wishes on your own.