The following article discusses some of the many reasons you should not write your own testamentary plan. Even with services like LegalZoom, every state has different laws on estate planning and these generic forms will not suffice. Finding forms online will only cover the very basic necessities and there is no guaranty that it will comply your state’s law and avoid intestacy.
http://wills.about.com/od/fiveessentialdocuments/tp/doityourselfwill.htm
- Jeremy