  One of the most common questions I've gotten, as an attorney, is, "Can I sue X ? " The answer is simple--you can sue pretty much anyone you please. The question you should be asking is, "Will I win ? " For an example, you might want to take a quick look at the case of urlLink United States ex rel Gerald Mayo v. Satan . (My favorite of the reasons that the case was not allowed to continue was "plaintiff's failure to include instructions for directions as to service of process. ") 
