As Chief Advocacy Officer at the National Association of Realtors since 2020, McGahn focuses on improving access to homeownership, ensuring fair housing for all and promoting NAR research to inform policymaking. In 2024, she worked with the Veterans Administration to revise its policies regarding direct payment for buyer representation and lobbied around the issue of independent contractor status. Before joining NAR in 2018 as its first woman executive of government affairs, she had a nearly two-decade Capitol Hill career.