Hi, Let's say that I am freelancing a few 3D modellers for their artwork. At the end when I pay them or at the beginning of the hiring what kind of paperwork should I have them sign to have everything official and legal and after completition, the rights transfer to me to be used in the game? I live in the U.S. if that helps, and thank you for your answers. -Mike

IANAL, but an NDA helps if they see anything vital. Most lawyers can draft you a transfer-of-rights agreement.