In general, the answer is yes, but if (for example) you indicated that all your effects should be buried in a big hole in the back of your property, that request might be deemed inappropriate by the courts and denied. A judge can void all or part of a will. You cannot change the effects of law just by stating your wishes in your will. For example, you may not suspend or terminate any legal rights or claims that a spouse, child or business relationship may rightfully have against an estate just by stating that in a will. They will remain in effect.