It is important to have a power of attorney, healthcare power of attorney, and will, regardless of marital status. These documents will ensure that you have someone to speak on your behalf if you are unable and that others will know how to carry out your wishes. See the attached article for more detail, and if you have any detailed questions contact your attorney’s office.
http://www.dailyfinance.com/2015/05/21/5tems-singles-need-estate-planning/
-Jeremy