Fandom_Lawyers is a community of lawyers and non-lawyers who are interested in the broad spectrum of legal issues of concern to the fan community. While some of our community members are also lawyers, nothing posted to this community, including anything in comments to posts, should be taken as legal advice.
If you're a fan, and you're dealing with legal issues, there are various resources that you should look into - many of them are free.
The Electronic Frontier Foundation has spent the past decade working to protect "the rights of web surfers everywhere". They have been involved in a wide range of cases where corporations have attempted to overstate their claims to things like copyright and trademark rights.
rivkat has created a bibliography of legal articles on fannish subjects; you can find it here.