I've been asked to take some photos for a local charity. The photos include portraits of the staff and the facility. They got a price quote of $2000 from a local photographer which they cannot afford. A friend works there and requested me if I can help them with this. She is aware that I am not a professional and I am not going to charge them either. 1- I was wondering if anyone of you have a sample disclaimer that I can use? 2- Am I suppose to have someone at the charity sign this disclaimer? Thanks!