Karoleen Feng established MEDA's Community Real Estate program in 2014 to rebuild community assets in the Mission District after a decade-long absence of affordable-housing production in the neighborhood. Against the odds of the low-income, primarily Latino families neighborhood being decimated, she has been instrumental in jump-starting MEDA being joint venture partners for the Mission-Castro cluster of the San Francisco Housing Authority Rental Assistance Demonstration program, new construction of almost 500 apartments and preservation of dozens of small apartments off the private market.

Karoleen has also led the Mission Action Plan 2020 initiative to shape policies and planning regulations for land use in the neighborhood. She has built affordable housing for over a decade – rental and for-sale, family and senior, mixed use developments, and affordable commercial real estate at East Bay Asian Local Development Corporation and Little Tokyo Service Center.