Montreal bureaus, Sansweet was transferred to Los Angeles, where he covered the gaming industry, aerospace, banking, and Hollywood. He helped break the first stories on massive foreign bribery by U.S.-based multinationals and was part of a Journal team that won the 1977 Sigma Delta Chi Public Service Award; he was a Loeb Award finalist in 1990. Sansweet was a lecturer in business journalism at the University of Southern California in the mid-1980s, teaching a course that he created. He became the Wall Street Journal's Los Angeles bureau chief in 1987, a position he kept until 1996 when he made a leap of faith and "followed his bliss" — and passion – to become Director of Specialty Marketing at Lucasfilm Ltd. His title later changed to Director of Content Management and head of Fan Relations. Sansweet turned his love of the Star Wars saga into a second career, acting as Lucasfilm's liaison to fans worldwide, and their liaison to the company. He did presentations at well over 100 conventions in the U.S. and many more internationally from the U.K., France, Spain, and Germany, to Australia, Japan, Mexico, and Finland. He appeared on more than 50 hours of Star Wars collectibles programming on QVC in the last half of the 1990s, and has amassed the world's largest private collection of Star Wars memorabilia, housed in a converted chicken barn in Sonoma County, Calif. Not abandoning his love of writing, Sansweet has eighteen books to his credit, sixteen of them on Star Wars, including the 1.2 million word Complete Star Wars Encyclopedia in 2008 and 2012's Star Wars: The Ultimate Action Figure Collection. It was announced on October 20, 2010, that Sansweet would be stepping down as head of fan relations effective April 2011. He stated via press release: "Nearly 15 years ago I left my post as Los Angeles Bureau Chief of the Wall Street Journal to follow my bliss and take a 'one-year job' as Lucasfilm's Star Wars ambassador," said Sansweet. "Now it's time for another change and new challenges, while still maintaining an active role in the Star Wars fan community." In June 2017 Sansweet said that he was a victim of theft and that over 100 items from his collection have been stolen, "The majority of them vintage U.S. and foreign carded action figures, many of them rare and important pieces." Reportedly, several of those pieces have already been,