What I remember: A human is named in the will of a great person on another planet. He is sent to retrieve this inheritance, with the intention that it should be returned to Earth. Numerous adventures follow as our hero learns what the inheritance is and what it could mean for a number of groups. Assassinations, intrigue, adventures abound. There are two or three book in the sequence, and for the life of me I can’t remember the author or the titles.
Help!