Haag took over the reins at Northwest MLS (NWMLS) in 2024 when the country’s 14th largest MLS was celebrating 40 years. He had, since 2008, served as general counsel for the Kirkland, Washington-based MLS, which has more than 33,000 subscribers. Haag also serves on the board of directors for the Council of Multiple Listing Services and for MLS Grid. NWMLS, which is independently owned by its member real estate firms, made news in 2024 when it opted out of the NAR settlement.