I was approached by an older relative who expressed interest in writing a memoir and wants my help. He actually might make a publishable memoir--retired navy SEAL who served from Vietnam through Afganistan and is an extremely colorful character, navy experience notwithstanding. I was curious if anyone has had experience writing in collaboration like this and if anyone had any tips on things to keep in mind, mostly from the business side. I am not completely certain what he wants from me. He might just want advice, he might want a ghost writer, he might want to do it in tandem. I'm going to meet with him in a couple of days to discuss what he has in mind. I trust him as much as I trust anyone, but if we are going to work together on something that he wants to sell, then obviously I am going to want our relationship defined contractually before we begin. Any thoughts or past experiences to relate?