I have recently completed a job to photograph 17 of our local Civil, Criminal, and Circuit Court Judges. Some of them were so happy that they have expressed an interest in using the images in future reelection campaigns. I presume that they want to use them for flyers, advertisments, etc. Does anyone have an example of a release for use of images without conceding my copyright? Should it be a limited release or should I just sell them an unlimited release to use the images as they see fit? Thanks!