Karyn Sper is the director of Fannie Mae’s multifamily green and healthy-housing financing business. She focuses on developing and implementing financing products that increase the health and sustainability of the country’s multifamily housing stock and creating analytical tools to assess the impact of green financing. Prior to joining Fannie Mae, Sper spent five years in commercial real estate loan underwriting and business development at MMA Realty Capital, and eight years in environmental consulting, where she specialized in solid waste management and pollution prevention.