As an amateur photographer, I had never taken heed to advice about getting model releases and consent forms from the people that I photographed. This ended up creating a huge mess for me when I ran into a client that did not want her images used for marketing. While we had never discussed the possibility I always assumed with all of my clients that since I took the image I could use it as I pleased. Unfortunately the law does not work this way and I had to change the way that I do business.
After becoming a true professional in the photographic industry and having experienced some of these more complicated legal issues I have realized that never again will I photograph a session that doesn't have a consent form involved.
People can change their minds or not like the photographs you took even though they may be mind blowing awesome and need to be displayed. Because of this transitional mind set, having a legal document can save you the headache that is sometimes involved with shooting models. Make sure you always get that form signed or you may regret it at a future date.