Pegasus in Space by Anne McCaffrey

Pegasus in Space follows directly, with mayhem and mutiny, at the opening of a manned space station, which Peter and talented friends helped build. Further hassles ensue during his training for space haulage work: obstructive bureaucrats, crooked suppliers, murder attempts, and skillful sabotage. McCaffrey specializes in feel-good adventure SF, full of romance, warm friendships, and hearty meals. Somehow her villains never quite convince, though, and their evil deeds are so rapidly annulled that the story rarely builds up much suspense. Meanwhile, the orphan girl Amiriyah who's adopted into Peter's family has a mysterious, subtle talent of her own, one that we soon guess will change his life.