I was hired by a salon to do photography on a part time basis. They asked about who owns the rights to the images and they agreed to let me retain copyright as long as they have full use of the images for social media, ads, ect. The only stipulation is that if it ever goes to a national or multinational scale, we have to have to discuss further compensation. They asked me to send over a release/contract outlining the agreement but I'm having a hard time finding something that works since this will be an ongoing agreement. Can anyone make any recommendations or suggestions? Thanks so much for your help, I really appreciate it.