Tommy Choi co-founded the Weinberg Choi Residential team in 2007 with his business partner Josh Weinberg. They celebrated the opening of their own Keller Williams Market Center in January of 2017. Since that time, the Weinberg Choi Residential team has sold over 900 properties, and over $400 million dollars in sales volume. They are consistently ranked in the top 25 real estate teams in Chicago, which puts them in the Top 1% of Chicago Association of REALTORS' top producers. In 2019, Tommy served as the 135th president of the Chicago Association of REALTORS and the first Korean-American president in the association's 135 year history. He also serves as an active member of the Illinois REALTORS, and was the National Associations of REALTORS’ YPN Advisory Board Chair.